agree with reefnut. Definately ditch the crushed coral and UG filter. I had both in my tank for 1.5 yrs and although never suffered a nitrate problem I couldnt believe the difference in apperance the sand made. My fish even play in the sand now.
Question for DIY canopy builders. For the wood that rests on the tank itself to support the canopy. Do you just use glue or do you also nail/screw the wooden blocks to the canopy itself? I started gluing them in but really didnt want to put any finishing nails on the canopy where its not...
try not to do any water changes until your cycle is complete. doing that will only extend the cycle. everything will fall into balance when the cycle is complete.