Color change overnight with water change?

[foshizzle]

I did a 10% water change last night. The lights came on this morning, and I noticed two monti caps and a number of acros seemed just a shade lighter. It's not severe. Noone but me would probably notice

I adjusted parameters in the new IO water as usual. did everything as normal. I normally run 8.5alk so the IO does bump the alk a little.

The only thing I can think of is temp probably dropped about 3 degrees during the water change. I have also been running a little "dirty" these days trying to deepen color on a few pieces.
Did I "bleach" them or could this just be a normal reaction to cleaner water?

 

[Froggy]

Any before and after pictures ? How long did you let the salt mix age before you used it ?

 

[foshizzle]

Nah, The lightening was very subtle. I'm not even sure it would show up in the pics. The most noticeable was an orange/pink cap that went mostly pink. Salt mix aged a week or so.

 

[jjackson]

the change might have allowed more light to penetrate therefore slight bleaching... no biggie

 

[David-Chiu]

Maybe we have the same situation.Maybe yours became more colorful.
and my became more pale.
http://reefcentral.com/forums/showthread.php?s=&threadid=837040
I run 7.0alk.

 

[prop-frags]

Is that your first w/c with that batch of salt mix? Did you test the salt mix? You may have gotten a bad batch. It's been known to happen!

 

[foshizzle]

<a href=showthread.php?s=&postid=7293545#post7293545 target=_blank>Originally posted</a> by prop-frags
Is that your first w/c with that batch of salt mix? Did you test the salt mix? You may have gotten a bad batch. It's been known to happen!

This is the second or third WC I have done with this batch. No problems til now.

Bleaching normally occurs from rises rather than drops in temp, right? It was only a 3# drop.