I'd really love it if someone could come up with a way to dose dry ferts and have it connect to the filter so that there litterally would be only two tubes in your tank; both the filter's.
I just have this thing about dry ferts since I've always done it that way. It's just less hassle for me (and I don't have to worry about weird stuff growing in the mix). At the moment, I pre-measure my doses and put them in small finger paint containers that are then stored in a little plastic box, so when I dose I just pick one out and dump it in. I can't imagine having to measure every other day.
7G Long:1 Killie, 3 Rasboras, 1 Ghost Shrimp, 1 Amano
Java Fern, Anubias Coffeefolia, Anubias Barteri, Cabomba, Ludwigia
5G:2 Platies, 1 Ghost Shrimp
Java Fern, Green Wendtii, Petite Nana, Bacopa