Red-eared slider catchbasin bureaucracy with my DIY tent up (work in progress)

this is my turtle tank of 55 liters, holds a 5 "red-eared slider and a 1.5" RES child in a separate tank, the shares of water to the tank. There are also three koi 5-7 ", a 6" red belly pacu and two comet goldfish, feed the fish, once small for the turtle. tank through an external filter that filtered through a filter medium, which runs to cope with extra large bio-load. The canopy is raised a foot above the tank, closed with plexiglass. This is done tomake room for the turtle basking dock, and also for the mangrove trees grow in a background of slate to put the section between the lid and the tank to make it look like a waterfall