Thanks - there is oil on the backing, but I didn't put it on 'till it was full of water & too close to the wall to reach... I guess I'll pull it & try again, or go w/ the "rock scape" side now that the cabomba, val & crypt are going stronger.
Val is nuts - like 8" in 2.5 days. It was ~1/2 as high as tank on 1/11 pic - now tallest leaf has 3-4" layingon surface of water!
Cabomba sprig in my 5g growing almost 1/2 as fast too. I'm gonna need trimmers soon.