Sorry, I browse multiple boards. I technically have 2 one gallon nano's at the moment, a 10 gallon, and a 58 gallon tank. Aqua Forest said that diffuser would work up to 30 gallons. Currently I am in the market for a diffuser for the 58 - hence 2.
Eventually, I want to retire the 10 for a cube. If I pressurise the cube, I am sure that diffuser would be great. The 10 is low tech moss/shrimp tank at the moment, but I will probably be adding tech to it as I have time and funds (installed a mattenfilter tonight, will work on a ondo hood after I finish the stand). Orignally wanted an 8 gallon cube, but it will probably grow before I build it. The stand (which is under construction) is scaled to hold a 30 gallon aquarium - but a smaller cube would work on it as well.
58 gallon oceanic, Kessel 360 tun sun, pressurized co2, eheim pimp #179 - 2217 and diffuser