Waterfall foam - safest

[Reefinny]

What is the best and safest waterfall foam on the market? I am about to embark on an upgrade and will be doing some shelves and floating islands. My last tank I drilled with rods and used putty but think I will trysome foam out as well on this one as I am going to be working with some very large shelf pieces as well.

Any recommendations?

 

[cmantis]

http://store.aquascapeinc.com/p/black-waterfall-foam-16-oz

 

[Reefinny]

I will check it out. Thanks