Fish At Top

[jacksonh]

Hello all,

I was just wondering if there was any reason why my fish would all be gathered up at the top of the tank. I did a water change about 2 days ago and also added some fish. My test strip came up good but they are acting funny but no one has died or anything. Anyone every have this happen?

 

[starrynightxxi]

are they gulping at the surface? perhaps there isn't enough oxygen in the tank. that's the only time i've ever had it happen.

 

[jacksonh]

are they gulping at the surface? perhaps there isn't enough oxygen in the tank. that's the only time i've ever had it happen.

Yeah they were, I had an air pump and when I did my water change 2 days ago I turned it off, I just turned it back on about 5 minutes ago and already some of them went back to the bottom. I did realize that it was that important...now I feel really bad..

Thank you very much!

 

[starrynightxxi]

well, there are a number of factors in how important an aerator is. It really depends on what sort of and how many fish you have, how big your tank is and how much surface area there is, how much surface movement there is, whether or not it's heated or coldwater, how clean the tank is... fish keeping is definately a science