Big tank experts

[wegotcrabs]

figure 1.5lbs per total system gallons. Place as much as your aqua-scaping desires in your DT and put the rest in the sump.

No need to cure it, although some do rinse it and bath it to test phosphate. So your choice.

Before you place your tank on the stand I recommend a sheet of FRP (like in commercial bathroom walls) under the plywood and insulation. This will help prevent moisture from any tanks below the stand creeping up into the plywood.

I've actually lined my entire fish closet with the stuff to prevent mold, allow easy cleanings, and its waterproof - not just resistant

Thats a great idea. Do you have pics

 

[smb2415]

@wegotcrabs - check out the photos in my build thread. I don't have a photo showing the FRP under the tank plywood but it is the same as whats on the walls in the fish closet. Also notice the FRP goes over the pond liner which goes up the walls by at least 2" forming a "tub" to contain water spills, leaks, and possible overflows.

http://www.reefcentral.com/forums/showthread.php?t=2285093

 

[Vinny Kreyling]

For the RO you want one of these:
http://www.grainger.com/product/3DXW2?cm_sp=HIO-_-HIDP-_-RR_VTV70300505&cm_vc=IDPRRZ13