Ph Swings

[PapaDragon]

I've been watching my Ph drop at night to 7.84 and rise to 8.05 during the day. Is that too big a swing for SPS corals?

 

[fishroomlady]

ph swings are natural - Alk swings is what you would need to be concerned about with sps.

 

[CoralHut]

Agreed 7.84 - 8.05 is normal. If you start getting more than a 0.5 swing you could start having some problems. Like fishroomlady said it's much more important that your Alk levels are stable. Temperature can be a big one as well.