My 1000g fish bar ( predatory freshwater)

[Roger Mcfish]

Thank you! So the answer to both of your questions is yes. The only thing holding the glass up is silicone. No framing or wood. I made sure to have around 50mm overlap between the glass and the panel on all sides which is entirely backfilled with silicone. Holds up the weight of the glass easily.

The bolts you see are for structural rigidity so I didn't need to use fibreglass. Simply seal internally like after assembly like a glass tank

That's awesome. I've always wanted to try and build a small diy plywood tank but always been so nervous in doing so.