Dragon's Tongue, Red Grape, Red Palm

[rpritch]

Hello,

Do any of the following macroalgae's go sexual? Also, do any eat up considerable amounts of calcium?

Dragon's Tongue, Red Grape, Red Palm

I just purchased a frag of each and I was wondering what to expect.

 

[tektite]

Non of them use much calcium at all, some can be sensisitive to swings in alk though. The only one I've ever seen of the three to go sexual is the red grape. Usually doesn't die when it does it though, and doesn't affect the tank badly.