<a href=showthread.php?s=&postid=8367438#post8367438 target=_blank>Originally posted</a> by tigerjace  
everybody's input here is right...it requires all combinations mentioned here.
-trace elements
-iodine
-good water flow but not too strong, oscillating device helps
-clean water, disagree about the dirty water part
-oxygenated water, usually is automatic with good flow
-of course the obvious salinity, ph, etc.
-moderate lighting is sufficient
-REAL IMPORTANT...TEMPERATURE!!! SHOULD BE 74deg. to 78deg
hope i didnt forget anything.... [/QUOTE
you don't need to add trace elements or iodine.