My goldfish pond, which was built with big rocks and concrete, had a plastic/vinyl type liner, but after one of the wallabies knocked some rocks in off the edge, the liner got holed and started to leak.

I removed the old liner and made up a render type mix and smoothed the inside surface, then fibreglassed a shell inside the pond, I will be putting on the flowcoat tomorrow.

My question is, will I have to wait a few days or longer for the stuff to cure properly, or can I fill it up with water once the stuff goes hard?

Another concern is the vapors/solvents, will they be harmfull to the fish if its not cured enough ?

Any thoughts on this welcome.