Tag Archives: haven

My guppies are acting more strange than usual. I have a 20 gallon tank set up as a winter time haven for my small tropical fish. In summer they thrive in an outdoor pond. This particular aquarium has been set up for about 3 months now. The guppies are mixed in with many Mollies, also breeers and a few cordroy(?) catfish who are the tank janitors. There are fish in all developmental stages within the tank. I just cleared up a fungal infection with Melaffix, which worked great but my Guppies are now swimming erratically, either spiralling quickly, swimming upside down, “scraping” themselves on the bottom etc….It seems that the affected are starting this at maybe a month or 6 weeks of age and older. I do regular water changes. I feed live brine shrimp as a supplement. I have added “Shimmy blocks” within the last week to help condition the water, but ammonia levels and ph are kept under tight control anyway and the mollies and catfish seem fine. Help!