what kind of clear sealants can you use?

[moray eel man]

I've been wanting to make some artificial coral and hand paint them with detail and would like to seal them was wondering what would work good without harming the fish also what would work good for painting silicone or rubber for the ones that are movable with the water current?

 

[usilicone]

silicone material is waterproof, and has good adhesion property. we are specialized in silicone material. more details, you can add my skype. selinajiang17@yahoo.