Here is my 30 gallon. I use DIY co2 injection. 4 watts per gallon. Thinking of getting some flourish. Fluorite under the substrate. I can never get the water crystal clear for some reason. Fish are a 3 spot gourami, flame honey gourami, 6 guppies (1 male, 3 females, 2 juvis) 3 panda cories and 5...