gsp wall

Hello Everyone:) I've got a 45-gallon reef tank with a pair of clowns and a leather coral that finally opened. I currently have a back pane of what is I am assuming acrylic and I wanted to create a GSP wall. However, I have two large pieces of rock resting on the acrylic and I have heard if GSP...

I’m selling this whole 8 gal setup besides the rock w/ coral, AI prime and AI nero. Comes with fluval light that is Bluetooth and hygger wavemaker. Besides that, everything is included; tank stand, heater, ATO, ATO res, power strip, GSP on filter wall, sand, and tiger conch. Full system is plug...

So I am trying to grow a gsp wall in my tank on both sides of the back wall, I have a Red Sea reefer 170. The gsp has grown onto the back wall pretty well so far, but I am not sure if I should trim it or wait a little longer till it grows out some more. I have never cut gsp and I do not want to...