Drop in salinity burnt acro tips?

[aaron23]

Hi Randy and R2R, can a drop in salinity cause burned tips on acros?

I've been monitoring alk daily and its very stable at 8.75 DKH each night at the same time.

Salinity however has changed from 1.025 to around 1.022-23. Not sure how this happened but my blue millepora is showing completely white bald tips.

Thanks in advance.

 

[Randy Holmes-Farley]

If it happened slowly, I doubt it is the issue. If it happened instantly it might.

 

[aaron23]

i checked salinity on friday it was 1.025 i checked salinity this morning it was 1.022-23. over the course of 2 days? thank you for your input randy! :)

 

[Randy Holmes-Farley]

How would it fall that much that fast? The volume would have to increase by more than 9% dilution with fresh water for that to happen.

Maybe it is just testing error?

 

[aaron23]

Yes! I said the same thing and I recalibrated the refractometer and it was pretty off. Once recalibrated its back at 1.025! Not sure how the refractometer was so off.

I'm thinking the white spots on the blue milliepora are growth spots. I had those pesky pyramid snails in the milli and I crushed their shells. I think it's the milli regrowing over it and not so much a spike of some sort. Looks really weird how it's just a white patch

 

[Randy Holmes-Farley]

OK, let us know if it is growth!

Happy Reefing. :)

 

[aaron23]

thank you randy! :)

 

[Randy Holmes-Farley]

You're welcome. :)