02-08-2011, 04:42 AM
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I say ghost shrimp, they are sold as feeder so they are really cheap, like 33 cents around here. They are fun to watch and will eat food that hits the ground or dead leaves, I like watching them eat flakes cause you can see their insides since they are clear. I think they are social so get a few, not like itll break the bank.
I wouldnt go with crabs for 2 reasons. 1 they are semi aquatic and will need some land to roam around on. 2 my dad had a couple years ago and they somehow got out of the tank and were walking around the house, and its very gross when you are walking around and step on it...
Unless you set up like a ramp or something for the crab to get some air and have a lid with no openings go with the ghost shirmp, they are super cheap they clean up and the worst that could happen is your fish eat them.