bubble was initially looking good, all bubbles very tight and close to each other.
dosed some coraline stimulator, immediate reaction from bubble. it den looked as if it was in a strong current, like all the bubbles getting slapped everywhere (actual fact very little current, bubble is placed on sandbed)
it settled down after a while, and the bubbles started expanding, till its mouth became exposed and can be seen.
exposed mouth, is that a good or bad thing?