Can you keep pet fish and not have a major impact on the environment? Whether it’s the goldfish you win at the school fair or a tank purchased and set up from an aquarium store–or something in between–there are a few considerations to making your tank as environmentally friendly as possible. These tips will not only help lessen your tank’s impact on the planet but will save you a little money, too. The topic can be broken into a few main points: the fish, the tank, and the maintenance. Let’s wade in (I couldn’t help myself), shall we? TheZeroWastePet.com is a participant in the Amazon Services LLC Associates Program, an…