For your 25k problem, maybe a more resilient, protective 2nd fabric layer like acrylic, or theres that fabric they use for boat hulls (not sure if its fish safe). Then the flag stone on top. Then, the largest, smooth pea gravel possible for cover and backfill. Not perfect but cheap. Just thinking o...

We had rescued 100+ silver arowana in the past 15 years but this has been a first. This fish developed positive buoyancy and totally lost balance in about 6-8 hours in the new 4500 gal tank for no good reason that I could see, and then died 2 days later in isolation tank, where it was alone, having ...

Lord, have mercy on David! Sorry to hear of this. Every time Dave and I crossed electronic paths, I was left grateful.

Do you mean to start afresh and compete with the fish jokes thread?