I set up a 40 gallon long aquarium a week ago the water is cloudy and wont clear up. For filtration I'm running 2 rena power filters rated a 150 gph and a powerhead with a sponge prefilter.
I have aquarium sand as a substrate which was rinsed thouroughly. The tank was clear for a couple of days but clouded up and now I have a scum on the surface. Its a heavey scum oil slick apearance. There cloudy water also looks like theres a gas in it and I can see it swirling in the currnet.
I'm running the air vaulve on the powerhead open. If I turn the air down the corys start breathing hard and gasping.
I tested the water and there is 0 amonia and 0 nitrites. I used seachems bacteria culture in a bottle to kick start my bio filtration.
I've been keeping fish for 15 years and I'm realy stumped. The only thing I can think of is somehow I had a large bacteria die off and it's built up on the surface of the water blocking o2.
I'm thinking about tearing the whole tank down cleaning everything and starting over.
I have aquarium sand as a substrate which was rinsed thouroughly. The tank was clear for a couple of days but clouded up and now I have a scum on the surface. Its a heavey scum oil slick apearance. There cloudy water also looks like theres a gas in it and I can see it swirling in the currnet.
I'm running the air vaulve on the powerhead open. If I turn the air down the corys start breathing hard and gasping.
I tested the water and there is 0 amonia and 0 nitrites. I used seachems bacteria culture in a bottle to kick start my bio filtration.
I've been keeping fish for 15 years and I'm realy stumped. The only thing I can think of is somehow I had a large bacteria die off and it's built up on the surface of the water blocking o2.
I'm thinking about tearing the whole tank down cleaning everything and starting over.