Bored..... So....

[DJ88]

how plausible would it be to put a CA reactor on a tank like mine with no sump?

That is how I will be running mine. But How I will be doing it is that I have an overflow box and bulkhead that until I have the sump set up will be used to take water from the tank into the skimmer. That is where I will be dripping the effluent. So that it passes through the skimmer to aid in removing any CO2 and as well mixing to adjust pH and such to match the tank as closely as possible.

In your case... All I can suggest is that if you were to do it try splitting the return into two or possibly three outlets. Then take each "branch" and have it drip over top of a powerhead or area of high flow so it is mixed quickly. Very quickly.

That is pretty much all I can suggest.

Anyone else?