I have planned a 400 gallons plywood aquarium but I don't want to use any epoxy, pond liner or fibreglass.
First, build an aquarium body from plywood plate. Then saw a hole for a in front glass. Then buy exactly samesized glass, than what is the plywood in front off, and glue it to it.
Then buy some (cheap) thin glass sheets, and glue them into other walls (and bottom) with silicone, non-toxic.
It is hard to explain (especially with my bad english), but maybe this picture helps... or not.

First, build an aquarium body from plywood plate. Then saw a hole for a in front glass. Then buy exactly samesized glass, than what is the plywood in front off, and glue it to it.
Then buy some (cheap) thin glass sheets, and glue them into other walls (and bottom) with silicone, non-toxic.
It is hard to explain (especially with my bad english), but maybe this picture helps... or not.
