Concerned about mushrooms

[LanaDelNeighh]

I have these green tip hairy mushrooms... started as one and split to 3. They have been doing great, got the tank with the mushroom as one and it split to 3 over the last few months. Today it started to do this! I’ve target fed them and they close up, but not like this. Any ideas?

pH: 8
Salinity: 1.025
Nitrate/nitrite: 0
Ammonia: 0
Calcium: 340
Magnesium: 1080
Dkh/alk: 6.7

Calcium and mag was low, doses reef builder. Alkalinity was way lower than normal, dosed a kh buffet too. Gonna do another test in a few.

 

[ndrwater]

All a little low.. they don't look all that bad.. sometimes corals like mushrooms will do that.. poop... And come back bigger than ever

 

[LanaDelNeighh]

All a little low.. they don't look all that bad.. sometimes corals like mushrooms will do that.. poop... And come back bigger than ever

Interesting! I have target fed them a couple times in the past few weeks so that would make sense. Thank you!