It is slowly taking over my 75 gallon tank, BBA I sure but none of the typical cures seem to be doing anything. I've got 4 true SAE's thal love hanging upside down and eating flake. PH 6.8-7.2 after WC KH 3-5D Marineland C-360 4 2L DIY CO2 diffused by CF Just began Excel dosing this weekend Plant growth seems good on all plants even affected plants with the exception of my mother sword, her leaves are becoming thin and are dissolving however remain lush green. My Sag. and Lotus seem to be improving several now leaves weekly. In desperation I tried dosing with small amounts of H2o2. dosing about 60ml daily with WC every other day for a week. On the first dose small bubbles seemed to form on the algae but after that nothing seemed to happen and it continued to spread. :errr: Please help or is it a lost cause?? IMG]http://i252.photobucket.com/albums/hh33/Nabobmob/IMG_0198.jpg[/IMG] While I'm posting photos, has anyone ever seen this whit moldish looking stuff at the base of these Vals, it appeared over night?