I did say i was unsure how long it would take

I'm having trouble finding Hydrocrete to mix with the render....and til recently i havent really had a chance to look for it in depth.

The styrofoam wont be on the tank base, the majority will be on the back of the tank, and it will be silconed on

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1x350L Cichlids, 1x 286L Planted, 1x190L Cherry shrimp, 1x140L Angel breeding pair, 1x130L Planted, 1x119L Peppermint BN breeding colony