Alexis22 Posted April 23 Share Posted April 23 I have a 5 gallon tank with a few danios and platys and one oto catfish. It’s been cycled for a few months. One of my danios this week suddenly started acting similarly to some I lost back when cycling my tank. I have been checking my water and besides having some but a safe amount of nitrates everything was normal. The only thing I noticed this week was the other danio was being overly aggressive and suddenly scaring him off from eating and chasing him into the corners. They were always pals so not sure what happened. But this danio has lost weight and his body and tail looks “S” shaped now. He can barely swim and sinks. I’m pretty sure I will lose him tonight. If my water is ok what else can bring this about? Stress from the other’s behavior? It just seems so out of the blue. Everyone was great just last week! Also what can I do for algae growth? It’s growing on my artificial plants and sinking into my ornaments. The white filter floss was orange the other day when I cleaned the tank. My catfish isn’t seeming to really control it at all. Suggestions? Link to comment Share on other sites More sharing options...
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