EQUIPEMENT/SETUP: a 75 gal tank (startup3/1/06) with: 100 lbs rock, Odyssea lights:(2) 150W 10K HQ,(2)96W actinic,2 power heads, a Seio 820,and a Fluval 4 filter. The main tank drains to a 15 gal mud refugium on a reverse cycle,96W VHO and filled with Cheato algae. This tank overflows through...