Resin for Mould/Background

Hi Ladies and GentsI would like to know what type of resin can I use to make a custom background/mould that will fit inside my tank.I need something that will last must be pretty strong and not kill all my fish Please help meThanks in advancePieter

 

Normally its carved/ sculpted from either a polyurethane or polystyrene foam and then painted.

 

HI JwhI know it gets done that way most of the time but I have an idea I really want to tryFibre glass resin is it poisonous as you get koi ponds made of fibre glass

 

The make water tanks out of it as well, I think it would be fine, you would have to let it cure properly and probably let it soak for a while to ensure all the volatiles are gone

 

Fibre glass is perfect for this !!!

 

It depends what you've used to carve the background. You can use epoxy on polystyrene, but definitely not polyester resin. You'll end up with a gooey mess.

 

going to be following this one. I have seen people also use cement but that can cause problems over time.

 

Cool thanks gentsLet me play around with the idea and I will keep you up to dateMy idea is to take a piece of granite smash it in to pieces and put the pieces in the resin and have it set and like that creating a background or something like that or make a mould and cover the mould with gravel or some kind of stone