Couldn't be worse then fibreglass resin lol

And there lyes the issue as I'm building a indoor plywood aquarium Perhaps you advise on this is, is there a No VOC non toxic black sealant that bunn ...

Apparently not it doesn't stick to fibreglass

@Jewelleryrescue No this is for indoors and a marine aquarium not pond outdoors

building a plywood aquarium what fish safe water proof product can be used What pond sealer can I use that will stick.to fibreglass.