morfin Posted March 25, 2008 Report Share Posted March 25, 2008 Hiya, have a 190 litre bowfront corner tank. Established seven months. Ammonia 0 until two weeks ago - it measured 0.25. Ph is 6.8, nitrate 5-10 and nitrite 0. Temp is 28C. filtered by a Fluval 405 which is 5 x's litrage per hour and an additional sponge filter. thought it might be the filter so cleaned it out, it had alot of poo in it. then moved a bit of drift wood on the weekend that I hadn't moved in a month and got an additional two buckets of poo. Do 50% weekly water changes with full gravel siphon. I'm thinking that I need to clean the sponge filter as well, but maybe I am overstocked? There are 7 odessa's, 7 lemon tetra's, 2 angels and 4 bristlenose. And yes they all live happily together without any one fighting with each other. Is it possible this is an excess poo thing - anyway any suggestions gratefully accepted. Don't quite understand why it went from perfect to ammonia detected. Quote Link to comment Share on other sites More sharing options...
jim r Posted March 25, 2008 Report Share Posted March 25, 2008 405 should cope without doubt. 7 months may play a part with a small tank however the only advice I can give would be to clean the filter and do regular water changes. Quote Link to comment Share on other sites More sharing options...
purplecatfish Posted March 25, 2008 Report Share Posted March 25, 2008 could be a dead fish Quote Link to comment Share on other sites More sharing options...
tHEcONCH Posted March 25, 2008 Report Share Posted March 25, 2008 Hiya, have a 190 litre bowfront corner tank. Established seven months. Ammonia 0 until two weeks ago - it measured 0.25. Ph is 6.8, nitrate 5-10 and nitrite 0. Temp is 28C. filtered by a Fluval 405 which is 5 x's litrage per hour and an additional sponge filter. thought it might be the filter so cleaned it out, it had alot of poo in it. then moved a bit of drift wood on the weekend that I hadn't moved in a month and got an additional two buckets of poo. Do 50% weekly water changes with full gravel siphon. I'm thinking that I need to clean the sponge filter as well, but maybe I am overstocked? There are 7 odessa's, 7 lemon tetra's, 2 angels and 4 bristlenose. And yes they all live happily together without any one fighting with each other. Is it possible this is an excess poo thing - anyway any suggestions gratefully accepted. Don't quite understand why it went from perfect to ammonia detected. Most likely you have some sort of antibacterial contaminant that has reduced the capicity of your bio-filtration, e.g. soap residue or flyspray. Just keep doing water changes and/or dose the tank with JBL Filterstart, Cycle, or similar. Quote Link to comment Share on other sites More sharing options...
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