Corals Slimming During Water Change

[fishguy597]

As the title states the last few I have been doing a water change a few sps have been slimming . I have for the most part always used oceanic salt. Alk,cal,and mag check out fine. So since I was running low I decided to switch to tropic Marin. I mixed in a 3:1 tm to oceanic to have the same thing happen. I have even let my garbage can empty of rodi to wipe it down. I have been using this rubbermaid can for years. I know its not the food grade one since it says trash on it. Any ideas? Has anyone else had this happen? thx.

 

[Finland]

I have had this happen when I have done large water changes or didn't mix the salt overnight. Never caused any problems other than the temporary sliming. I use reef crystal.

 

[fishguy597]

I did a 20% water change. not all of them were doing it just a few. Never had it happen till recently. Thanks for the response.

 

[Met3112]

Are they sticking out of the water when you do it? Most of my sps slime and I never thought to be concerned.

 

[06bug]

Many of my sps slime during water changes as well. I have never found any adverse affects from it. I have always chalked it up to be some type of feeding response.

 

[jroovers]

I think it is a defense response, not feeding. I stir up the sand bed, blast the rocks with a turkey baster, and expose numerous corals when emptying water... they all slime, every time, I think it is par for the course.

 

[fengxzhang]

When my salt is not mixed completely, or the temperature difference is too great then that's likely to occur

 

[fishguy597]

None of the coral get exposed to the air since I have enough room in my sump . I just found it to be weird since it only has happened with this batch of salt. I guess ill see next week when I use only tm salt.

 

[Dog boy Dave]

The only time mine slime durring water changees is when i let the sump get to lo and the pumps push lots of micro bubbles. Unless exposed to air, bubbles or some other stress mine dont slime. I use IO Reef Chrystals mixed and circulated at least 24 hours in advance, usually longer, and sometimes do up to 60 gallon water changes in a 435 system. The water changes themselves never cause the coral to slime unless I get careless and blast them with bubbles.

 

[bamf25]

My cali blue acro slimes with water changes, but it may be location since it is near the top of the tank and nearest to the return so it may get hit with the new return water when the pump goes back on. The corals that are further from the returns do not even retract.