How do I clean out fish tank from disease, but keep my frog alive?
The symptoms you’re describing can fit either ammonia poisoning or septicemia. You may have tried to add to many fish at one time to the tank. Fish produce wastes, and part of the waste is ammonia, which is toxic to the fish. If you’ve had the tank with your goldfish for quite some time, you may have had enough bacteria to convert his wates into less harmful products, but not enough for all the added fish. It takes about 3-6 weeks to get the amount of bacteria in a new tank, but it may still take a week or more whenever you add fish for the amount to increase sufficiently. Septicemia is a bacterial infection of the blood, and is usually related to poor water quality. In all, the combination of animals wasn’t a good one. Goldfish are a coldwater fish which should be kept at temperatures below 72o. The frogs and other fish are tropicals, so their temperature should be over 76o. Goldfish, plecos, and frogs are big wastes producers (meaning all put out a lot of ammonia). I’m not sure what
