My porcupine fish has recently developed a taste for fiddler crabs, and it seems like that's all he wants to eat now!!! So it seems like I am going to be keeping these things long term. I bought 50 of them and I have them in a 10 gallon tank with a couple concrete pavers and about an inch of salt water. I have a small heater in the water and an air stone. I noticed that the water was smelling bad so I put a bag of carbon in it. That didn't really help.
So I want to do this right. I want to keep the crabs happy and healthy (it's the right thing to do for them and the end user fish). Is there some sort of filtration I can use?
So I want to do this right. I want to keep the crabs happy and healthy (it's the right thing to do for them and the end user fish). Is there some sort of filtration I can use?