 |
 13W UV 1500gal Fish Pond Pressurized Bio Filter + 790gph Submersible Water Pump $118.99 Time Remaining: 11d 4h 19m Buy It Now for only: $118.99 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 5h 4m |
 SHOP PERFECT AQUARIUM CANISTER FILTER SYSTEM MEDIA 265 GPH $54.00 Time Remaining: 4h 2m |
 Fluval 305 Aquarium Power Canister Filter 260 GPH A211 $89.95 Time Remaining: 28d 19h 2m Buy It Now for only: $89.95 |
 SHOP EXTERNAL 3 STAGES AQUARIUM CANISTER FILTER 265 GPH 75 GALLON $54.00 Time Remaining: 4h 33m |
 Fluval 406 Aquarium Canister Filter 340 GPH A217 $149.95 Time Remaining: 13d 3h 55m Buy It Now for only: $149.95 |
 SHOP 530 GPH AQUARIUM CANISTER FILTER W UV STERILIZER 200 GALLON $96.99 Time Remaining: 7h 32m |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 19h 54m |
 3 STAGE AQUARIUM CANISTER FILTER 265 GPH FOR FRESH SALT WATER $53.88 Time Remaining: 16d 7h 3m Buy It Now for only: $53.88 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 19h 55m |
 PROTEIN SKIMMER AQUARIUM FILTER W 300GPH POWERHEAD PUMP $49.90 Time Remaining: 2d 5h 59m Buy It Now for only: $49.90 |
 SALE PERFECT SUN SUN AQUARIUM CANISTER FILTER SYSTEM MEDIA 375 GPH HW 303A $68.99 Time Remaining: 6h 15m |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 2h 33m |
 3 STAGE EXTERNAL CANISTER AQUARIUM FILTER SALTFRESH OK 264 GPH w FILTER MEDIA $59.99 Time Remaining: 28d 59m Buy It Now for only: $59.99 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 2h 33m |
 Overflow Box S 600 GPH Aquarium Sump Wet Dry Pre Filter 1 Bulkhead Coral Reef $45.95 Time Remaining: 27d 15h 59m Buy It Now for only: $45.95 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 2h 33m |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 2h 33m |
 Marineland Penguin Power Filter 50 to 70 Gallon Aquarium Fish Tank 350 GPH $40.95 Time Remaining: 25d 15h 58m Buy It Now for only: $40.95 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 2h 33m |
 Overflow Box L Aquarium Filter 1200 GPH Sump Wet Dry Hang On Bulkhead Coral Reef $59.95 Time Remaining: 28d 14h 35m Buy It Now for only: $59.95 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 2h 33m |
 Marineland Penguin Power Filter 50 to 70 Gallon Aquarium Fish Tank 350 GPH $40.95 Time Remaining: 1d 4h 10m |
 New 317GPH Aquarium Water Pump Reef 52 Max Head Powerhead Undergravel Filters $16.99 Time Remaining: 11d 7h 5m Buy It Now for only: $16.99 |
 EHEIM Classic Canister Filter 2215 164 GPH for 93 gallon aquarium w media $79.99 Time Remaining: 2d 38m Buy It Now for only: $149.99 |
 CFS 500 GPH Aquarium Canister Filter External 60 100g Freshwater Marine Reef $64.95 Time Remaining: 4d 14h 9m Buy It Now for only: $64.95 |
 Odyssea Aquarium Canister Filter External 75 125G Saltwater Cichlid UV 700 GPH $94.95 Time Remaining: 1d 17h 35m Buy It Now for only: $104.95 |
 SHOP FRESH SALT WATER FISH TANK EXTERNAL FILTER KIT 265 GPH $54.00 Time Remaining: 7h 56m |
 Fluval 405 Canister Aquarium Power Filter 340 GPH A216 $119.95 Time Remaining: 28d 22h 39m Buy It Now for only: $119.95 |
 13W UV 1500gal Fish Pond Pressurized Bio Filter + 528gph Submersible Water Pump $89.99 Time Remaining: 1d 2h 34m |
 740 GPH Fish Water Pump Powerhead Pond Aquarium Tank Marine Filter Submersible $44.92 Time Remaining: 10d 6h 30m Buy It Now for only: $44.92 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 1d 22h 53m |
 13W UV 1500gal Fish Pond Pressurized Bio Filter + 528gph Submersible Water Pump $89.99 Time Remaining: 2d 2h 48m |
 FRESHWATER MARINE AQUARIUM FILTER + 9W UV LAMP 525GPH $109.98 Time Remaining: 27d 2h 8m Buy It Now for only: $109.98 |
 SHOP AQUARIUM FISH TANK POND WATER PUMP FILTER KIT 160 GPH $23.00 Time Remaining: 6h 19m |
 New 158GPH Aquarium Water Pump Reef 33 Max Head Powerhead Undergravel Filters $14.99 Time Remaining: 11d 7h 10m Buy It Now for only: $14.99 |
 STAR EXTERNAL CANISTER FILTER + 9W UV LIGHT 530 GPH 200 GALLON $96.99 Time Remaining: 22h 57m |
 STAR SUNSUN PERFECT EXTERNAL CANISTER FILTER 9W UV 530 GPH 200G HW 404B $106.99 Time Remaining: 23h 18m |
 2 Powerhead 250 GPH Aquarium Water Pump Free Filter NEW $19.95 Time Remaining: 14d 6h 58m Buy It Now for only: $19.95 |
 STAR 265GPH CANISTER FILTER + MEDIA 9W UV LIGHT STERILIZER HW 402B $81.99 Time Remaining: 22h 40m |
 Aquael Powerhead Internal Filter Kit 100 gph for up to 20 gal aquarium +extras $19.77 Time Remaining: 28d 22h 30m Buy It Now for only: $19.77 |
 STAR MULTI STAGE 530GPH CANISTER FILTER 9W UV LAMP HW 404B $106.99 Time Remaining: 1d 11m |
 STAR 530 GPH CANISTER FILTER W MEDIA 9W UV LIGHT HW 404B $106.99 Time Remaining: 1d 27m |
 Odyssea Aquarium Canister Filter External 75 125G Saltwater Cichlid UV 700 GPH $98.95 Time Remaining: 27d 20h 11m Buy It Now for only: $98.95 |
 STAR 530GPH AQUARIUM CANISTER FILTER W UV STERILIZER HW 404B $106.99 Time Remaining: 1d 1h 26m |
 New 422GPH Aquarium Water Pump Reef 80 Max Head Powerhead Undergravel Filters $22.99 Time Remaining: 11d 6h 50m Buy It Now for only: $22.99 |
 STAR MULTI STAGE 265 GPH CANISTER FILTER KIT W 9W UV LIGHT HW 402B $81.99 Time Remaining: 1d 3h 25m |
 Fluval 305 Aquarium Power Canister Filter 260 GPH A211 $10.50 (6 Bids) Time Remaining: 5d 21h 12m |
 Pond Pressured 13w Filter UV BIO FILTER 1500gal with 790 GPH pump $113.99 Time Remaining: 21d 4h 15m Buy It Now for only: $113.99 |
 13W UV 1500gal Fish Pond Pressurized Bio Filter + 528gph Submersible Water Pump $89.99 Time Remaining: 2d 20h 3m |
 FLUVAL 406 REPLACING THE FLUVAL 405 EXTERNAL AQUARIUM FILTER 383GPH A217 NEWEST $154.89 Time Remaining: 4d 18h 18m Buy It Now for only: $154.89 |
 STAR PERFECT SUN SUN AQUARIUM CANISTER FILTER SYSTEM MEDIA 375 GPH HW 303A $68.99 Time Remaining: 1d 3h 13m |
 STAR SUNSUN PERFECT EXTERNAL CANISTER FILTER 9W UV 375 GPH 100G HW 403B $89.99 Time Remaining: 1d 3h 28m |
 Fluval 405 Canister Aquarium Power Filter 340 GPH A216 $119.95 Time Remaining: 29d 2h 27m Buy It Now for only: $119.95 |
 STAR FRESHWATER MARINE AQUARIUM FILTER + 9W UV LAMP 530GPH HW 404B $106.99 Time Remaining: 1d 5h 33m |
 EXTERNAL 4 STAGES AQUARIUM CANISTER FILTER 530 GPH 200 GALLON HW 304 $89.99 Time Remaining: 5d 6h 59m Buy It Now for only: $89.99 |
 AQUAEL AQUARIUM INTERNAL WATER FILTER PUMP OXYGENATOR 72 GPH NIB FREE SHIPPING $14.49 Time Remaining: 1d 3h 36m Buy It Now for only: $15.99 |
 100 GALLON 3 STAGE EXTERNAL 9W UV CANISTER AQUARIUM FILTER 370GPH SELF PRIMING $75.99 Time Remaining: 2d 20h 3m |
 Pond Pressured Filter UV Bio Filter Build in 13W UV Sterilizer with Water Pump $149.99 Time Remaining: 19h 14m Buy It Now for only: $149.99 |
 STAR 530 GPH AQUARIUM CANISTER FILTER W UV STERILIZER 200 GALLON $96.99 Time Remaining: 1d 2h 55m |
 4500 Gallon Pressurized Koi Pond Filter w 3150GPH Pump $269.95 Time Remaining: 10d 21h 41m Buy It Now for only: $269.95 |
 STAR EXTERNAL CANISTER FILTER W 9W UV LIGHT 375 GPH 100 GALLON $77.00 Time Remaining: 1d 5h 32m |
 STAR 375 GPH OUTSIDE CANISTER FILTER W MEDIA 9W UV LIGHT HW 403B $89.99 Time Remaining: 1d 3h 49m |
 Pondmaster PMK190 190gph Pump and Filter with Bonus Fountain Head New Hand $71.34 Time Remaining: 22d 5h 15m Buy It Now for only: $71.34 |
 STAR 3 STAGE CANISTER FILTER 9W UV LAMP STERILIZER 265 GPH HW 402B $81.99 Time Remaining: 1d 7h 15m |
 LifeTech Aquarium Pump 290GPH 4 Under Gravel Filter Protein Skimmer Saltwater OK $16.99 Time Remaining: 23d 2h 12m Buy It Now for only: $16.99 |
 STAR FRESHWATER MARINE AQUARIUM FILTER + 9W UV LAMP 375GPH $77.00 Time Remaining: 1d |
 STAR SALT WATER MARINE AQUARIUM FILTER + 9W UV LAMP 530GPH $96.99 Time Remaining: 1d 5h 50m |
 AquaTop CF 400UV Canister Filter with UV9W Sterilizer 370 gph New Filters Pumps $104.87 Time Remaining: 10d 20h 48m Buy It Now for only: $104.87 |
 STAR 135GPH AQUARIUM 5W UV STERILIZER FILTRATION FILTER PUMP $35.00 Time Remaining: 1d 7m |
 Submersible Aquarium Filter Turtle fish 50 gal175 GPH $36.50 Time Remaining: 24d 59m Buy It Now for only: $36.50 |
 STAR EXTERNAL CANISTER FILTER W 9W UV STERILIZER 265GPH 75G NEW MODEL $81.99 Time Remaining: 1d 6h 27m |
 STAR FRESHWATER MARINE AQUARIUM FILTER + 9W UV LAMP 265GPH HW 402B $81.99 Time Remaining: 1d 7h 31m |
 Aqueon 06117 QuietFlow 50 Power Filter 250 GPH Slightly Used $25.95 Time Remaining: 24d 5h 14m Buy It Now for only: $25.95 |
 STAR 265 GPH AQUARIUM CANISTER FILTER W 9W UV LIGHT MEDIA HW 402B $81.99 Time Remaining: 23h 23m |
 200GPH Aquarium Submersible Multi Use Water Filter Pump $17.99 Time Remaining: 12d 8h 16m Buy It Now for only: $17.99 |
 STAR 100 GAL AQUARIUM CANISTER FILTER EXTERNAL PUMP FILTRATION 375 GPH HW 303A $68.99 Time Remaining: 1d 2h 59m |
 AQUAEL INTERNAL WATER FILTER PUMP 1 85 GPH FREE SHIPPING NEW NIB $15.99 Time Remaining: 1d 16m Buy It Now for only: $17.99 |
 Odyssea CFS 500 GPH Canister Filter External Aquarium Freshwater Marine 75 100 g $64.95 Time Remaining: 17d 19h 37m Buy It Now for only: $64.95 |
 STAR SUNSUN PERFECT 375GPH AQUARIUM CANISTER FILTER W UV STERILIZER HW 403B $89.99 Time Remaining: 1d 4h 36m |
 Quiet Aquarium Overflow Box 800GPH wet dry filter $50.14 Time Remaining: 18d 4h 21m Buy It Now for only: $50.14 |
 STAR MULTI STAGE 375 GPH CANISTER FILTER 9W UV LAMP HW 403B $89.99 Time Remaining: 1d 4h 49m |
 STAR 375 GPH AQUARIUM CANISTER FILTER W UV STERILIZER 100 GALLON $76.90 Time Remaining: 1d 5h |
 SUPREME OVATION SUBMERSIBLE AQUARIUM FILTER 1000 GPH $31.88 Time Remaining: 20d 19h 50m Buy It Now for only: $31.88 |
 STAR SUNSUN AQUARIUM EXTERNAL HANG ON FILTER 30 GAL 135 GPH $27.99 Time Remaining: 1d 18m |
 100 GALLON AQUARIUM CANISTER FILTER EXTERNAL PUMP FILTRATION 375 GPH HW 303A $69.99 Time Remaining: 5d 6h 48m Buy It Now for only: $69.99 |
 STAR FRESHWATER MARINE AQUARIUM FILTER + 9W UV LAMP 375GPH HW 403B $89.99 Time Remaining: 1d 6h 6m |
 STAR EXTERNAL 3 STAGES AQUARIUM CANISTER FILTER 265 GPH 75 GALLON $54.00 Time Remaining: 1d 10m |
 Vortex Diaton Aquarium Canister Filter Vortex 250 GPH XL Vortex 300GPH Free Sh $129.99 Time Remaining: 10d 15h 13m Buy It Now for only: $129.99 |
 STAR 216 GPH AQUARIUM 13W UV STERILIZER FILTRATION FILTER PUMP $56.00 Time Remaining: 1d 55m |
 158 GPH Aquarium Submersible Filter w built in Pump $12.95 Time Remaining: 2d 20h 29m Buy It Now for only: $12.95 |
 STAR AQUARIUM FISH TANK EXTERNAL CANISTER POWER FILTER 100 GAL 375 GPH HW 303A $68.99 Time Remaining: 1d 5h 41m |
 STAR SUNSUN AQUARIUM EXTERNAL HANG ON DUAL FILTER 160 GPH 50 $28.99 Time Remaining: 1d 3h 31m |
 Aqueon 06081 QuietFlow 20 Power Filter 125GPH New Filters Pumps Pets Aquatic $28.60 Time Remaining: 22d 2h 43m Buy It Now for only: $28.60 |
 STAR FRESH SALT WATER FISH TANK EXTERNAL FILTER KIT 375 GPH 100 GALLON HW 303A $68.99 Time Remaining: 1d 6h 31m |
 CFS Aquarium Canister filter 500 GPH External Fish Reef $59.99 Time Remaining: 17d 28m Buy It Now for only: $59.99 |
 STAR TROPICAL AQUARIUMS FISH TANK EXTERNAL CANISTER FILTER 375 GPH 100 GALLON $68.99 Time Remaining: 1d 7h 16m |
 STAR FRESH SALT WATER FISH TANK EXTERNAL FILTER KIT 265 GPH $54.00 Time Remaining: 1d 3h 34m |
 550 GPH Powerhead Water Pump Aquarium Free Filter New $24.95 Time Remaining: 7d 7h 17m Buy It Now for only: $24.95 |
 STAR PERFECT AQUARIUM CANISTER FILTER SYSTEM MEDIA 265 GPH $54.00 Time Remaining: 1d 5h 5m |
Gph Filter
Pond Algae
I will discus two primary algae problems; green water (or free floating algae) and attached algae such as common string algae (also known as hair algae, blanket algae or Blanket weed).
First a brief description: Algae are plants that vary from small and single-celled to complex multi-cellular species that use photosynthesis to produce nutrients they need from sunlight and other sources. Even though they are small in size, they are very strong plants. Similar to most plants, algae require organic and inorganic nutrients, light, carbon dioxide (oxygen at night), water and heat.
First of all water chemistry is important for both types of algae. A pH between 7.0 and 8.0 is important and even more important is a GH between 100 and 300 and a KH between 50 and 150. This will in aid in maintaining a healthy Redox Potential. Good circulation and filtration are also important (please see my pond information article for more about this: “A Clear Pond”; Pond Information).
Finally a well Cycled pond where ammonia is 0, nitrites are 0, nitrates are less than 50 ppm, and phosphates near 0 is very important to algae control.
GREEN WATER:
Green water is basically single cell algae that is usually too fine to be filtered out by most common pond filters (sometimes Diatom filters can achieve this).
Control of green water may involve several parameters and methods or sometimes just one or two.
Here are parameters and methods worthy of note:
*As noted above, a GH between 100 to 300 and a KH between 50 to 150 are important. This effects Electrolyte levels and Redox Potential as well as pH. Water changes, ‘flow through’ circulation, and products such as Wonder Shells can also help (avoid use of Plaster of Paris).
*Decay and Bio Load; If you have a lot of decaying matter in your pond (usually on the bottom, however this can also be in a poorly maintained or designed filter as well), a high bio load (too many fish, fish waste, uneaten food, ECT), these will add to Nitrogenous waste (such as nitrates) which will provide nutrients for algae growth. Lowering your fish count, improving the quality of your Fish food (to lower fish waste due to lower food digestibility due to poor ingredients), and most important lowering the amount of decaying matter in your pond will improve this factor for algae control. Also as per the nitrogen cycle make sure you have a functioning Bio system in your pond (via filtration, veggie filters, ECT).
*UV Sterilization; probably the king of green water control, A properly installed UV Sterilizer with a pond turnover of at least once every three hours and a flow rate through the UV of no faster than 40 gph per watt is very effective for the control of green water. The UV Sterilizer will also aid in Redox Potential which further helps in green water control.
*Barley Pellets; this is a so-so method in my opinion for green water control, however this can work or aid in green water control especially in milder cases or in conjunction with other methods and parameter controls. Barley pellets or even extract are more effective than straw due to the higher concentration of Iodine which has been shown to be the effective ingredient in this method.
*Blue Dyes; Some inert Blue dyes can be used like a sunblock, these work to prevent light penetration into the pond which slows or inhibits algae growth. Methylene Blue may be used in a pinch, however even though it works even better than ordinary blue dyes for algae growth (due many of Methylene Blues medicinal properties) it also will destroy beneficial nitrifying bacteria and is very harsh on aquatic plants with long term use.
*Veggie Filter (plant filter); these remove many nutrients that algae need and are one of my more successful methods for pond green water and algae control (even without UV Sterilization).
*Copper; Copper Sulfate is effective in controlling green algae, however it to has side effects in that it is not good for pond plants and is difficult to remove from ponds.
*Algaecides; I do not recommend these as these are only a quick fix that often makes the situation worse in the long term. As algae are killed, they then die and add to the bio load which will then add more nutrients and pollutants to the water column which will further exasperate the algae problem.
HAIR ALGAE (Blanket Weed);
*Again as noted above, a GH between 100 to 300 and a KH between 50 to 150 are important. This effects Electrolyte levels and Redox Potential as well as pH. Water changes, ‘flow through’ circulation, and products such as Wonder Shells; Mineral Blocks can also help.
*Barley Pellets; I have found this more effective for control of blanket weed than green water. Beer has also been used for blanket weed control.
Barley pellets or even extract are more effective than straw due to the higher concentration of Iodine which has been shown to be the effective ingredient in this method.
*Decay and Bio Load; Basically the same as the previous description for green water control.
*Flow through filtration; adding an over flow to remove water while a small amount of water is constantly added will control nutrient levels and aid in Redox and mineral replenishment (depending on the water parameters of the new added water).
*Manual removal; this kind of goes without saying however since a pond is a living organism unlike a swimming pool, algae is going to be present in some form no matter what you do and removal by hand or implement is to be expected.
For more resources, pictures, and information, please follow this URL: Pond Algae; The control, prevention and treatment of green water algae and blanket (or string) algae.
About the Author
By Carl Strohmeyer
400 gph can filter how big of a fish tank?
ok i have a 400 gallon per hour flow rate filter and i want to purchase a tank so im wondering whats the reccomended size tank i could get that would still be clean with just this filter
i just got a 125 gallon tank so youd think its okay if i got another filter like for 50 gallons then it would be ok?
I believe the more filtration the better. I myself would use that filter on a tank no more then 40 gallons. I try to have about a 10x per hr turnover rate. I have a 90 gallon. I run 2 AC110's. An AC110 has a 500 gph turnover rate.
Intex 2500 GPH Filter Pump with Timer.wmv