I have a 40 gallon breeder tank set up. I currently have two clowns and one banggai. I will be picking up one more Cardinal and a fifth fish. I haven't decided on the last fish yet but, I was wondering how do you tell how "full" your tank is? I want to keep a light load in the tank as I'm getting used to everything. The tank has been up and going for a couple months now. The plan is to give it more time then start with some corals.
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