I've been using a Red Sea 500 for co2 distribution in my 84g for years and lately it isn't getting the job done.
I want a method that is independent of the canister filter. I don't want to reduce filter flow at all. Happy with it as is.
So what is the latest thinking on CO2 delivery for a tank this size? I don't have space in the cabinet for a reactor. The Osaka cab is very short on interior space.
Ideal solution would:
1-Be 100 independent of other systems
2-as leak proof as possible
3-easy to maintain
4-minimize device in tank.