I e-mailed John at floridapets.com and he reccomended Caulerpa prolifera.
I will be getting a hang on Refugium, so you guys can keep that in mind. I would like to get one that is the absolutely least likely to release the nutrients back into the tank, and if it did, it wouldn't be something that would require a 30% water change or more. Do you think if I just kept 1 pound of Caulerpa in my fuge along with some chaeto that it wouldn't even be enough Caulerpa to cause a problem even if it did "go sexual"?
Anyway, I want to make sure I get a vareity. I want plants that will absorb Nitrates, but also plants that will use Phosphates. Because I want them to outcompete any Cayano, Diatoms, green slime algae, etc. Because I'm still having minor problems with those.
Does anyone know what Chaeto mainly uses, and what about Caulerpa prolifera? I also want to get a few plants for my main tank that just look nice, they don't need to do much of a job. But I don't want anything "bad" like something that would use calcium, or would possibly harm the tank by releasing too many nutrients back into the tank.