Preeteen Photos Fish Problem Any Fish Experts Please Help!!!!!?

Fish problem any fish experts please help!!!!!? - preeteen photos

OK, so this fish was bought in a store of fish, of course, and was in a tank alone, so he bought and a few more fish fish.this no goldfish. Ok, so I bought 2 goldfish and a fish, eating algae, I just killed and ate everything that I understand what is wrong and once when I jumped the cleaning of the tanks, and has bitten me bad, it did not hurt, but it felt like my teeth and I was bleeding a little little.so these small fish in a tank alone and do not know what to do with it. It does not die, you still can not eat the fish feed on his almost 3 years please help

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