need a little help!

[pstrew]

ok i wouldent say im completly new to this i some things...but anyway i have a 55g tank running a fluval 404 and a duel bio weel hang on back(more than enouph filtration) i used sand for a substrate. i have a tiger oscar 6-7in , jack dempsey 4-5in and a pleco 5-6in. the tank was established and running great than all of a sudden after a water change/vacume it clouded up and have had elivated ammonium and nitrate issues right at dangerus levels...have done at leat two water changes and still not much of a change. im at a loss at what i did to cause this and short of water changes not sure what els to do. so my ?s being what did i do wrong and were to go from here

 

[pstrew]

ok...its been running for like 3 plus months now i would say i do a 25-30% water change a week...i did miss a week befor the water change that i hade the clouding...no dead fish and feeding is the same tell the issue fish arnt eating as mush form the discomfort i presume...nothing reaaly chnged just missed the one water change and here i am lol...could that hav coused all this

 

[tamtam]

IT might just be the missed water change. I know I was about 4 days off on mine and hubby did the change. He seriously stirred up the gravel vacuuming and the tank was a mess, I figured it was just the missed change making extra waste and his lack of vacuuming skills mixing up the waste more than sucking it out.

I had some serious clouding for about 3 days, I did water changed of about 30-40% for 3-4 days. I honestly didn't think to test my water so can't say if I had a spike but I guess it wouldn't be out of the realm of possibilities if all that waste was moved around into the tank

 

[pstrew]

what about a 50% WATER CHANGE?

 

[smomus]

Do it! Nothing wrong with a water change