I can't easily go inline. I have an in tank matten corner filter. The tubing is the ribbed fluval fx5 tubing (I like to reuse stuff haha).
The Rhinox sounds like its worth a shot. If the drop checker will not turn green then the diffuser is not working...is it that simple?
ADA is a bit too pricey for the large diffusers.
Bump: Looks like they no longer make the Rhinox 5000, but the JARDLI brand has a 2" ceramic diffuser.
Last edited by ahud; 05-14-2018 at 12:12 AM.
Reason: left off