Nano Reactor Ideas
 

I have a 29g tank that I am currently using an Aquaclear 70 on to filter with carbon & chemipure elite. This is only a passive system and I would prefer a reactor type instead. The only issue is that I don't want to have any pumps in the tank, just feed and discharge pipes. Any ideas or know of any existing products? Thanks!

Anyone?

Buy a small external pump then all you need is the suction and pressure side in tank. No sump?