<... only if you're culturing Caulerpaceans... and not other algae in addition> Should there be more wattage and if there is less wattage does more time on make up for the difference or if you don’t have enough wattage that leaving it on all day wont help. Would low calcium levels cause this (I didn’t think so) Anyway, what you can do is point me in a direction or let me know which levels would cause this problem <... perhaps a few general aquarium books... All this takes time, careful communication... I assure you> Mark Refugium Algae – 09/25/05 Hello and before I ask my question thanks for the great service you are all providing. <> I have been searching through your site for weeks now and I am suffering from complete brain numbnes