u/KingNoodleWalrus

I bought this 100L (26 gallon) mass reactor flask a few years ago and now have the space to work on it! I'm planning on keeping two young oranda goldfish & 2 banjo catfish in here for now, but I'm looking for ideas/inspiration on how to scape the thing.

Likely tan/dark brown substrate, and I'm imagining longer/ mildly twisty branches that spread from the center with Java ferns & out of the 3 smaller necks, leaving the larger 4th opening for inlet/outlet for the filter & feeding.

Unrelated, anyone know where I can find corks/caps that're at least 4" in diameter? 😅

EDIT: Looking at the advice in the thread, I'll probably find a pond liner and make a patio pond for my Orandas & start plans for either a nano community or small coral tank.