Filter Aquarium Fish
Small aquarium question (fish, filter, etc.)?
So I have a 5 gallon hex that I had goldfish in for 5 years… they both died recently and I’m wanting to just tear the tank down until I move in a few months then set it back up. My question is that the tank had a bio-wheel filter, and I’m wondering what the best bet is to set up a new one (my cat got ahold of the old one, so I have to replace it). Should I just set the tank up and let it run for a while before I add fish, or do something different? Also, what would be some good fish to place in the 5 gallon? I’d like to have more than one, and am wondering if there are any options that I could feed all of my leftover goldfish food to 
Thanks in advance for all of your help!
A 5 gallon tank would be suitable for one betta, a trio of guppies, trio of platies or maybe 4 tetra’s. You definitely need some kind of filter and if you want to keep tropical fish you need a heater too.
Read up on fishless cycling to get your tank ready for fish.
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20 gallon aquarium fish tank goldfish
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