I just read up on Canna. Sounds good. I think I'll give it a shot. ThanksCanna works great lil to no salt build up
You could check out Aqua Flakes made by house and garden. It is designed for hydro systems or aero, I currently use it in aero and it never clogs ANYTHING. My water is as clear as day, good nute line too even though nutes are all the same.....the reason it is good is because it is cheap. Good luck