Underwater Filter
Do I need a Pond Filter for an understocked fish pond?

I have 5 Small (4inch) Comet Goldfish in a 350Gal Pond. I have strong a water pump, about 7 large Water Hyacinth and a good amount of underwater oxygenators. I recently added an ammonia & nitrate eating bacteria solution to the water.

Will I still need a Bio Filter to keep the pond healthy?

You'll need some sort of a filter to filter out the sludge and algae that will form. Bacteria is awesome for your pond.
You can build your own biofilter using a rubbermaid container, some tubing and lava rock - just be sure you rinse the lava rock good before using it the first time.

Hagen Fluval 3 Plus Internal Fish Aquarium Filter
Hagen Fluval 3 Plus Internal Fish Aquarium Filter
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NEW BECKETT UNDERWATER POND FILTER KIT BF350A20
NEW BECKETT UNDERWATER POND FILTER KIT BF350A20
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New Undersea Encounter Aquarium w/ Underwater ViewScope
New Undersea Encounter Aquarium w/ Underwater ViewScope
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Rio 180 Powerhead Fountain Aquarium Water Pump - NEW
Rio 180 Powerhead Fountain Aquarium Water Pump - NEW
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Fluval 3 Plus Fish Turtle Frog Underwater Filter  34gal
Fluval 3 Plus Fish Turtle Frog Underwater Filter 34gal
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5 PACK ELITE MINI FILTER UNDERWATER REFILL CARTRIDGES
5 PACK ELITE MINI FILTER UNDERWATER REFILL CARTRIDGES
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ELITE STINGRAY 5 INTERNAL FILTER FISH TANK AQUARIUM
ELITE STINGRAY 5 INTERNAL FILTER FISH TANK AQUARIUM
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12 PACK FLUVAL 2 PLUS FILTER FOAM REPLACEMENT PADS
12 PACK FLUVAL 2 PLUS FILTER FOAM REPLACEMENT PADS
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12 PACK FLUVAL 3 PLUS FILTER FOAM REPLACEMENT PADS
12 PACK FLUVAL 3 PLUS FILTER FOAM REPLACEMENT PADS
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12 PACK FLUVAL 4 PLUS FILTER FOAM REPLACEMENT PADS
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12 PACK FLUVAL 2 PLUS FILTER POLYESTER REPLACEMENT PADS
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12 PACK FLUVAL 3 PLUS FILTER POLYESTER REPLACEMENT PADS
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12 PACK FLUVAL 3 PLUS FILTER CARBON REPLACEMENT PADS
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12 PACK FLUVAL 4 PLUS FILTER CARBON REPLACEMENT PADS
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NEW PENN PLAX MEDIUM CLIFFS N CAVES FISH TANK SNAKE CN2
NEW PENN PLAX MEDIUM CLIFFS N CAVES FISH TANK SNAKE CN2
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12 pk Fluval 3 Plus Carbon Filter Pads Hagen NEW!
12 pk Fluval 3 Plus Carbon Filter Pads Hagen NEW!
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FLUVAL U2 Foam Pad and POLY/CARBON CARTRIDGE NEW 2 PACK
FLUVAL U2 Foam Pad and POLY/CARBON CARTRIDGE NEW 2 PACK
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Mini 1 Gallon Betta Aquarium Fish Tank NEW
Mini 1 Gallon Betta Aquarium Fish Tank NEW
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REEF AQUARIUM SET UP/HOW TO 2 SET DVD VIDEO GUIDE RO DI
REEF AQUARIUM SET UP/HOW TO 2 SET DVD VIDEO GUIDE RO DI
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Aquarium Fish Tank Biological Pump & Filter 119GPH NEW
Aquarium Fish Tank Biological Pump & Filter 119GPH NEW
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Pond Pump - PowerJet 400 Pump / Waterfall /Fountain Kit
Pond Pump - PowerJet 400 Pump / Waterfall /Fountain Kit
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Pond Pump - PowerJet 600 Pump / Waterfall /Fountain Kit
Pond Pump - PowerJet 600 Pump / Waterfall /Fountain Kit
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Pond Pump - PowerJet 900 Pump / Waterfall /Fountain Kit
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Pond Pump -PowerJet 1300 Pump / Waterfall /Fountain Kit
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Pond Pump -PowerJet 1500 Pump / Waterfall /Fountain Kit
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Pond Pump -PowerJet 2000 Pump / Waterfall /Fountain Kit
Pond Pump -PowerJet 2000 Pump / Waterfall /Fountain Kit
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Pond Pump -PowerJet 2400 Pump / Waterfall /Fountain Kit
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Pond Pump -PowerJet 2900 Pump / Waterfall /Fountain Kit
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Pond Filter - PowerFlo Mechanical Underwater Filter 500
Pond Filter - PowerFlo Mechanical Underwater Filter 500
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Pond Filter - PowerFlo Biological Underwater Filter 505
Pond Filter - PowerFlo Biological Underwater Filter 505
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Fluval U2 Underwater Filter up to 30 Gal ~ BEST PRICE
Fluval U2 Underwater Filter up to 30 Gal ~ BEST PRICE
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AZOO 1 Gallon Betta Aquarium Fish Tank NEW
AZOO 1 Gallon Betta Aquarium Fish Tank NEW
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Fluval U1 Underwater Filter,Aquarium Supplies
Fluval U1 Underwater Filter,Aquarium Supplies
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NEW PENN PLAX ACTION AIR SKELETON W/ RUM  FISH TANK O85
NEW PENN PLAX ACTION AIR SKELETON W/ RUM FISH TANK O85
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18W UV Sterilizer + Pump Jebo Pond Odyssea Reef NEW
18W UV Sterilizer + Pump Jebo Pond Odyssea Reef NEW
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NEW PENN PLAX SMALL CLIFFS N CAVES FISH TANK MOUSE CN3
NEW PENN PLAX SMALL CLIFFS N CAVES FISH TANK MOUSE CN3
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Double Layer Polyester Mesh Draw String Bag / FREE SHIP
Double Layer Polyester Mesh Draw String Bag / FREE SHIP
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LOVELY Coffee Table Furniture 36'' Fish Tank AQUARIUM!!
LOVELY Coffee Table Furniture 36'' Fish Tank AQUARIUM!!
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Penn-Plax SpongeBob Jellyfish Fields 6 Gal Aquarium Kit
Penn-Plax SpongeBob Jellyfish Fields 6 Gal Aquarium Kit
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Fluval 1 Plus 1Plus Internal Aquarium Power Fish Filter
Fluval 1 Plus 1Plus Internal Aquarium Power Fish Filter
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ELITE MINI INTERNAL FILTER UNDERWATER TANK AQUARIUM
ELITE MINI INTERNAL FILTER UNDERWATER TANK AQUARIUM
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ELITE STINGRAY 10 INTERNAL FILTER FISH TANK AQUARIUM
ELITE STINGRAY 10 INTERNAL FILTER FISH TANK AQUARIUM
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ELITE STINGRAY 15 INTERNAL FILTER FISH TANK AQUARIUM
ELITE STINGRAY 15 INTERNAL FILTER FISH TANK AQUARIUM
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☼ NEW  DISNEY LITTLE MERMAID AQUARIUM KIT
☼ NEW DISNEY LITTLE MERMAID AQUARIUM KIT
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MARINELAND AQUARIUM SYSTEM 6 GAL.PERFECT KIDS GIFT
MARINELAND AQUARIUM SYSTEM 6 GAL.PERFECT KIDS GIFT
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12 pk Fluval 4 Plus Carbon Filter Pads Hagen NEW!
12 pk Fluval 4 Plus Carbon Filter Pads Hagen NEW!
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Hagen Fluval 4 underwater filter for 57G aquarium NEW
Hagen Fluval 4 underwater filter for 57G aquarium NEW
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Aquabella Plasma Fishtank/Aquarium Wall Mount Fish Tank
Aquabella Plasma Fishtank/Aquarium Wall Mount Fish Tank
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Aquarium Submersible Biological Filter Pump 119GPH NEW
Aquarium Submersible Biological Filter Pump 119GPH NEW
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FLUVAL U U4 INTERNAL AQUARIUM FILTER UNDERWATER 65 GAL
FLUVAL U U4 INTERNAL AQUARIUM FILTER UNDERWATER 65 GAL
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Fluval U1 Underwater Filter up to 15 Gal
Fluval U1 Underwater Filter up to 15 Gal
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Fluval U4 Underwater Filter up to 40 Gal
Fluval U4 Underwater Filter up to 40 Gal
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Fluval U3 Underwater Filter up to 40 Gal
Fluval U3 Underwater Filter up to 40 Gal
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Fluval U2 Underwater Filter up to 30 Gal
Fluval U2 Underwater Filter up to 30 Gal
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Emperor 280 Power Filter
Emperor 280 Power Filter
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Current USA 96w 10000k Daylight Straight Pin Rpl Bulb
Current USA 96w 10000k Daylight Straight Pin Rpl Bulb
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Fluval 1
Fluval 1 "Plus" Foam Insert
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Fluval 2
Fluval 2 "Plus" Foam Insert
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Fluval 2
Fluval 2 "Plus" Polyester Pads
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Fluval 2
Fluval 2 "Plus" Carbon Pads
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Fluval 3 "Plus" Foam Insert
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Fluval 3
Fluval 3 "Plus" Polyester Pads
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Fluval 3
Fluval 3 "Plus" Carbon Pads
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Fluval 4
Fluval 4 "Plus" Foam Insert
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Fluval 4
Fluval 4 "Plus" Polyester Pads
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Fluval 4
Fluval 4 "Plus" Carbon Pads
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Fluval 1 Underwater Filter Foam Insert
Fluval 1 Underwater Filter Foam Insert
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Fluval 3 Underwater Filter Foam Insert
Fluval 3 Underwater Filter Foam Insert
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Fluval 4 Underwater Filter Foam Insert
Fluval 4 Underwater Filter Foam Insert
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Elite Mini Filter - CSA/US - 120 V
Elite Mini Filter - CSA/US - 120 V
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Elite Stingray aquarium filter 5
Elite Stingray aquarium filter 5
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Elite Stingray aquarium filter 10
Elite Stingray aquarium filter 10
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Elite Stingray aquarium filter 15
Elite Stingray aquarium filter 15
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Elite Stingray 10 Impeller Assembly - 120 V
Elite Stingray 10 Impeller Assembly - 120 V
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Elite Stingray 15 Impeller Assembly - 120 V
Elite Stingray 15 Impeller Assembly - 120 V
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Hagen Fluval 4 Plus Internal Fish Aquarium Filter
Hagen Fluval 4 Plus Internal Fish Aquarium Filter
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FLUVAL U1 underwater Aquarium Filter
FLUVAL U1 underwater Aquarium Filter
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FLUVAL U2 underwater Aquarium Filter for 30 Gallon tank
FLUVAL U2 underwater Aquarium Filter for 30 Gallon tank
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FLUVAL U3 underwater Aquarium Filter for 40 Gallon tank
FLUVAL U3 underwater Aquarium Filter for 40 Gallon tank
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FLUVAL U4 underwater Aquarium Filter for 65 Gallon tank
FLUVAL U4 underwater Aquarium Filter for 65 Gallon tank
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THE REEF AQUARIUM DVD, A SET UP/HOW TO GUIDE3hrs 22min
THE REEF AQUARIUM DVD, A SET UP/HOW TO GUIDE3hrs 22min
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Elite Cylinder Airstone - Dark blue -1
Elite Cylinder Airstone - Dark blue -1"x7/16" (6 pack)
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Elite Cylinder Type Airstone - Dark blue - 2pcs
Elite Cylinder Type Airstone - Dark blue - 2pcs
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Elite Cylinder Type Airstone - Dark blue - 4pcs
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LOVELY Coffee Table Furniture 24'' Fish Tank AQUARIUM!!
LOVELY Coffee Table Furniture 24'' Fish Tank AQUARIUM!!
Paypal   US $199.00
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FLUVAL U Series (U1, U2, U3, U4) Underwater Filters