I finally found somewhere to get purple spaghetti eels! I'm so excited! This means I'll definitely have a brackish tank, so I'm planning on putting in 3 purple spaghetti eels, 1 freshwater sole, 4 archerfish, and 5 monos. While this may seem overstocked to some people, remember that all of these fish have different areas of the aquarium that they like. The eels like to be under the substrate with only their heads poking out, the flounders like to be on top of the substrate, the monos like the mid area, and the archerfish like the top region. I think that with both of my filters on there, there will be more than enough filtration, and I can provide food for each specific kind of fish. For anyone who doesn't know (and I don't think I mentioned my filters ever), I have a 90 gallon tank with a sand substrate. I have an eheim 2215 canister filter and a marineland penguin 350B power filter. Do you think this would work?