A little different twist to biggy54s post...

I have a 23' skiff with the dual 30 gallon bait/fish tank options in the back. The tanks sit about 3-4 feet apart, have separate lids but are held up using the same platform. I'm looking for a way to combine these tanks into one giant tank. Essentially I'll need to cut the sides out that face each other and connect them with a water proof "tunnel." Given the tanks are made out of fiberglass I assume this will be the material I'll need to build the tunnel.

If anyone knows of someone who can help I'd appreciate it. I live in NKY and also frequent Lake Cumberland so anywhere close to those two areas would be best.

Incase you're wondering I'm looking for a way to safely hold/transport 50lb+ catfish when tournament fishing (using the existing tanks in my boat).

Thanks