Little white spawns of Satan

[Darwin]

Few days back I noticed some mild bleaching on a small section of my red cap’s edge. At the same time my tank has been consuming a lot more alkalinity and calcium than before so I figured it was just the insufficiency of nutrients. Starting dosing to replenish what was being consumed. Long story short I was just observing the cap and a nudi peeked out from under where the bleaching was . I picked it off and placed on the glass to get a better look. So in two days I removed two, I did scrub only because it’s 5inches encrusted on a rock already. I carefully looked under for eggs and nothing. I’m still a novice at reef keeping only being at it for 7 months. What other courses of action should I take? And I’m also expecting to get a few more Monti frags this weekend, so is waiting the best thing?

 

[Gary S]

It truly falls down to ID, and that pic is quite good enough to tell. If you could get a bigger pic with fiber detail I'm certain you can get a good answer. Good new is that if it's not damaging, nudibranchs can be benificial.