Acropora tip problem

[Kaman8]

Saw some problem on 2 tips of my acropora yesterday. There was pe yesterday on that tip , but today there is no pe on that tip anymore. All my other sps are doing great and no problem at all . Please help , i don't want to lose it.

Magnesium 1340
Calcium 400
KH 6.4

I know my KH is on the low side . I got an alk drop when i was on vacation with christmas and i'm slowly bumping the alk up.

 

[Kaman8]

Bump

 

[reefmutt]

Not much to go on here. Maybe premature to worry...

 

[Kaman8]

Not much to go on here. Maybe premature to worry...

So there is nothing to worry about

 

[theatrus]

Likely just growth?

 

[Kaman8]

Likely just growth?

There is no PE on that tip

 

[bogg]

Maybe nipping fish or crab worm etc