I recently got two otocinclus catfish on friday. Put them in my tank and they were fine up until today. One of them died just after a
water change and the other, well I'm not quite sure what is happening to the other. It is upside down on the surface of my tank. Every time I try to get it, it would swim away and cling to the glass. Then float back to the surface. No discoloration or any injury or disease that I can see, although it's belly is pretty big. I'm not quite sure if it's on it's way of dying. Do I take it out, just in case and it won't affect the Danios in the tank?
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