WOW austinsdad, you keep a deresa under only 4x65watts? I think it would require more lighting, considering thats not much for a 75gal. Its not the
WPG that counts, its the area the lighting covers. I have 440watt
VHO's and I cant keep croceas under them cuz they need
MH, and If I Just decided to get 2 175watt
MH they would do better under that than my
VHO, because it has more intensity. Im going to take out 2 of my 4
VHO's and add 1 or 2 250 watt
MH (Or possibly 400's since im getting into the
sps). I am going shopping for some cheap
MH and the best I found were at sharkysreef.com