What else to add to sump besides cheato?

[soccerman77]

What other plants are good to add to the sump setup that wont get out of control and get into the main tank?

[barbra]

Unfortunately chaeto likes a good deal more flow than other types of algae do, so you may not find anything else that will work happily in that environment.

[ChrisB]

I have ulva and red gracillaria with my chaeto, works great, although the ulva and gracillaria just maintain while the chaeto grows by leaps and bounds.