My Setup

[RobC]

Slowly building up collection.

The top tank, had a cracked back panel, so I replaced the back panel with plywood, extending it another 6 inches or so converting it to what use to be a 40 gallon to a 50g and some change. Also, DIYed a 3D background.

Bottom is a 40g grow out.

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[Filip]

Great discus collection in your main tank Rob.
Do you consider the wood as a safe replacement for a back glass? Did you use epoxy cover on the wood ? Did you use silicone as a sealer?