Thank you. Sure the 15 gallon is still a project in the works. It has no fish, not aquascaped, and half of the plants along the back have been removed in the process of running down a toxin in my system. I think I have found the source of the toxin in the form of the brass fittings I used in the filtration loop, I have already replaced them with plastic and shrimp and snails seem to be living in it now. I have bought a bag of ADA Aquasoil ready to use on this tank as soon as I gather my hardscape. I plan to stock it with Tetra and a Dwarf Gourami.
As for the filtration loop under the tank...took a lot of saving, gathering and patience over the last year. It starts out with a SunSun 603 canister filter > I upgraded the pump to an Eco 396 > Goes into a CO2 reactor I made from a house water filter canister > Passes through a UV > Through a water change valve > Through a Hydor 200W heater > Back into the tank. I have an auto-topoff system running off a 5 gallon PetCo bucket, I am using a Hydor ATO. The CO2 tank is an aluminum tank with an electric solenoid which runs on one of my light timers.
I am very excited to begin this tank finally, but I am undecided on an aquascape...I need to pillar the center with something to break up the line of sight hoping to encourage tighter schooling.