Cichla + Potamotrygon Tank : I need your help in conception

[Egon]

Hey, less than a year later... oooops, I did it again... with an asian population this time...

I'm opening another topic to feed the works and the population and the conception...

How did you fix the leak issue? Did you recoat the tank with some kind of waterproofing?
Any other upgrades while the tank was empty like lighting or filtration. Maybe a coat of paint in the fish room or something?