Hi all, I am in the process of setting up a new 300ltr tank. I have used black and white sand substrate, blue sodolite rock and what I believe to be a piece of mangrove root. The tank has been running for 8 days, everything seems to be okay so far but does anyone have any tips on set up and fish numbers for this size tank? Any advice would be welcome, thanks in advance. Cheers Teddy 