Mushrooms closed?

[diceman]

OK not much response from the reef BB so I'll try here. Quick history before my question. Tank been up for over 1 yr. LV with CC. Added 1 mushroom rock from LFS. LFS owner would not seel rock at first because my alk was 0. Bought Tech-A & B to raise alk and calcium. LFS tested water and alk was good. (couldn't tell you what #'s were but the water was blue on the darker side) LFS then sold me mushroom and for 2 weeks was big and fully open. Did water change 25% like normal and now mushrooms have closed to about 1/4 of there original size. Been 4 days now and still mushrooms not opening. Have been adding tech a&b, stronium, and iodine. Now for my question: Why will the mushrooms not open or if they will when? I don't have a test kit yet for alk but will be purchasing first chance I get. Thanks in advance for your ideas suggestions or thoughts.

 

[broomer5]

Mushrooms will shrink down occasionally especially at night, but if yours have not opened, I would guess it's either light or water quality related.
Do you test for iodine ?
My understanding is that Strontium is difficult to test for.
Are you testing for alk and calcium ?
Dosing anything without testing can be dangerous if you overdose.
Not saying this is causing mushrooms to fold up, just stating my opinion in general terms.
What else has changed since these shrooms have changed appearance ???

 

[diceman]

Have not had chance to get test kits for alk., cal,. or iodine yet but have not put much in either.. The LFS owner said one cap a week for the strontium and iodine. Only had the mushrooms a few weeks but nothing else has changed in the tank. This is the first piece of coral and was fine for 2 weeks. Only water change was shrunk it down and will not open yet. How touchy are mushrooms. I was told good hard beginner coral.

 

[diceman]

I may have found my problem. SG 1.020 ph 7.9 Both need to be higher and will slowly proceed to doing that. Thanks everyone for input.