BTA's

[Delphinus]

Haven't seen many BTA's pictured lately so I thought I'd throw some up.

To be honest I'm not sure how many I have at the moment. At least two, but the tentacles make one large matte of anemone it's nearly impossible to tell where one ends and the next begins.

Incidentally, notice the bubble tips forming. It's been some 2-3 years since they did that. In that timeframe I had them under Iwasaki lighting. Before that, they almost always had spherical tentacles. And now that I've switched back to 10000K I see some small sphericals forming particularly on the one on the left.

Having said that, my rose BTA had spherical tentacles for maybe 4 months, then switched to non-bubble. And after the switch back to 10000K that one has not shown any inclination to bubble.

So it must have something to do with the population of zooxanthellae in addition to the variable of lighting (and flow, and feeding patterns, and who knows what else in the myriad of variables in the age-old question of "why do BTA's lose their bubbles"). Anyhow I thought it was an interesting observation worth sharing.

cheers