Thanks, I don't want to drill the tanks, that's why the tube is going over the tops. Plus I don't think it's practical to seal the lower tank since then I wouldn't be able to do maintenance on it. That is an interesting idea and if I ever make a fish tank, maybe I'll make a weird shape like that.
Thank you everyone! I am going to raise the smaller fish tank and I have confidence now that nothing will overflow. This is going to be a very cool setup that I have never seen before!
Hello, I have two fish tanks next to each other. One is big (36 gallons, about 2 feet tall), one is smaller (10 gallons, about a foot tall). I want to make a connective tube so that my eel can swim between the two tanks but I don't want either tank to overflow. I am not adverse to raising the...