Thanks peoplez, feedback much appreciated. Im looking into the bubbler system, here's a few pics with the evident problem... So far the temp's been at around 70-75. There's also some red/ purpling on some of the stems of the drooping leaves. Watering has been at bout 12 hr intervals, I find this is a an hr or 2 off perlite running dry... If anyone could reccomend a more sufficient schedul please do... Alfoil over the perlite is new as im well over algae everywhere, however am a little sceptical as to damage it could do when heated ???