I agree, Pomtzu.

The solution seems so obvious to me. Rehome the fish. They'll be better off and you're life will be much simpler.

You are way over your head and from everything that was posted here ANYBODY can clearly see that the fish need a better environment. It is not ideal, especially in your situation where you were having a hard time keeping food in the fridge not too long ago, to break the bank to buy a larger gallon tank. Rehome them where they can live a long healthy life elsewhere, and fill your tank with fish that will thrive in the tank you already have...if you must have fish.