Nice! does it have an oopening or lid, or do you have to take the whole thing off everytime you get into the tank? Ive been thinking about a lid, but I like having mine open. Even though I have to fill a gallon a day lol
It's one solid piece (about 10 lbs) that's cut to size. I left enough opening for feeding and dosing without having to take the top off, but for maintenance, I remove the whole thing. I have plastic standoffs all around the rim of the aquarium that leaves a 1/8 inch breather area between the tank and the lid. I feel this provides for more than adequate gas exchange especially with the amount of surface turbulence provided with the closed loop and HOB filter. I'm still undecided on putting the MP10 in there as I don't want to have to worry about chopping up the green sea slug since he travels all over the tank.
Edit: I've increased the standoffs to 1/2" to allow for a higher water level with the Tunze ATO.
Edited by grmoore, 02 September 2011 - 08:56 AM.