Aquadoser.
 

Just a quick question. I was planning on getting a 5 gal aquadoser soon, but was wondering if anyone else here had one setup going into the main tank since my setup is sumpless. Any ideas? Can you just rest it on top of the aquarium or?

JT

Yep, that will work. It's a gravity fed dosing system so anyplace higher than the tank will work fine.