That could be part of it I suppose. I found a photo from before the clam when they were at 18k and the nems didn't look quite so good but they still had some bubbles. I have over 30 of the nems in 3 tanks and the 3 in the small tank have always looked better and they are clones from the others. If the clam wasn't showing so much new growth I would experiment with the lighting.
Quote:
Originally Posted by lpsouth1978
Are you thinking that having the lights at 7000k rather than the typical 14-20k is making them bubble up? I have NEVER had a BTA that had bubble tips.
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