Do your fish look tired, listless, not as colorful as they looked when you first put them in the tank? Something just seems wrong? An aquarium is a small world but it can suffer all the same problems of the big world. And pollution is the biggest problem you face.
Are there too many fish? Have you been feeding them too much? Is the water too acidic? Is the temperature too high? Or perhaps all of the above. The lucky thing is that you’re in charge and can make some quick changes that will set your little natural world back into balance.
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