I use Loctite 404 with no issues on Softies. SPS I use Aquascape Milliput epoxy
http://www.jlaquatics.com/phpstore/s...ct_ID=MC-DELEP
Takes a little bit to get right. I find have to press some into the rock, and then press the SPS into the epoxy. Not much luck with it sticking Monti caps yet tho. I keep breaking the caps
