could I use FRP (pvc shower board stuff) instead of fibreglass in a plywood tank and just silicone the seams and where the glass would go
is FRP fish friendly?
Thats a pretty neat idea, too bad I dont have an answer for you. I wonder if you could use the pvc and then put the pipe adhesive on the seems to get it to "weld" together.
if you can get a small piece take it and throw it in a tank with some feeders. i imagine it should be fine. the stuff is pretty weather resistant. pain in the ass to cut unless you got multiple sets of tin snips too