Very cool. I used foam in my FW Planted tank with good results too. It was a test for possibly using it on the walls of my reef tank, but when I decided to go with Vortechs, I scrapped the plan. I remember from a while ago you said you had glued the foam down to the tank bottom and I should have done the same. I built foam rocks and shelves around milk crates etc. but could not get them to the bottom of the tank, no matter how much weight I strapped to them...the boyancy was way to great. Pretty foolish of me to think I could do it that way, but I was recovering from a serious brain injury. :lol:
The Volcano is really looking good. Even in that pic you can see a tremendous volume of uniform bubbles.