<a href=showthread.php?s=&postid=6709505#post6709505 target=_blank>Originally posted</a> by catdoc
I have 2 tanks set up, each has a daughter from the same parent and one bubbles, one doesn't. FWIW, the btas (a green and a rose) are bubbled in my 29 gallon mixed reef that has a dsb and is lit by a single 250W 14K MH. Just a HOB skimmer and a couple of powerheads for water movement, no sump, sporadic dosing of additives and tank is fed 2 to 3 times a week. It's also in a room that has a lot of natural light, fwiw.
The non-bubbling btas (3 individuals: 2 came from the same parent as the bubbling one at work, 1 from a different source) are in my 125gal, bare-bottom, mostly sps tank that is lit by dual 400W 10K MH + 220W VHO actinics. I'm more consistent on this tank with dosing additives, top-off, more water movement, very large sump, much better skimmer. I don't see a difference in the bubbling if the MH are on or off, just long tentacles all the time.
Another observation in my tanks: the bubbling anemones are smaller than the non-bubbling ones. The bubbled rbta and gbta are about 4 to 6 inches across, the non-bubbling rbtas (even the ones from the shared parents) range from 6 to 12 inches.