The vining plants may work on the 2nd levelā¦ I use some nylon string, and screw in brass hooks to tie them up , and route them up and between tanksā¦ as I add the new 24/7 led lights, to my tanks, and replace my 18 inch plant ledās that are / were on them, Iām going to mount those on the ceiling of my work area behind the tanks, and encourage the vines to grow into that open spaceā¦ getting 8 - 10 foot vines growing out of the tanks, will pull an awe full lot of fish waste from an aquariumā¦ Iām getting to the point, that I donāt āneedā to do water changesā¦ I still do, but if I get busy, and needed to skip one, it wouldnāt be catastrophic