Green Mushroom (Rhodactis sp.) question

I bought this green mushroom like three months ago it has been moved around a bit since I didn't know they didn't like a lot of light and flow. New to corals so learning a lot as I go. I learned to do research before I shop so that is what I do now. However the top picture is what it looked like when I bought it. There were too smaller ones next to it that disappeared. The third one is now looking like that bottom picture. Am I supposed to feed it by hand brine shrimp or what else does it need. Calcium level at 420 ppm 125 gallon tank PH 8.2 Ammonia 0 nitrites o no magnesium test kit yet (recession) and no Iodine or phosphate test kit. I have a refugium in the back 30 gallons with cheato in it and like over 100 lbs of live rock that has a good amount of corraline algea on it. I have a torch coral and a LTA that are doing well. What am I doing wrong with the mushroom? Temp at 78 to 80 usually lowest was 76 it was cold outside.

 

mushrooms do have the ability to lit go a drift around to a place that better suites there taste. have you tried placing it in the shade under a powerhead, not close enough to get sucked in though

 

what kind of lights do you have my recordia looks totaly different

 

MH 175 W 10000K and two vho actinics

Yes its been moved around a bit in the shade out in the "sun" Part shade high flow low flow.

This is what the mushroom was doing after lights out

 

Any mushroom I have had that looked like that got that way from lack of light, however, you have quite intense lighting and may have initially bleached it.

 

Are we supposed to hand feed these mushrooms? Or do I need to get something else to feed it. I normally feed krill, brine shimp, and dry seaweed.

 

Softies like mushrooms are just filter feeders. If you are spot feeding a mushroom then you are probably going to end up with a lot of nutrients in the tank then an algae bloom. Moving the coral a bunch just add to the stress. Do you have an traces of copper in the tank??

 

our mushrooms are at the bottom of the tank in a low flow area under t5 lights and look great. we have one LARGE mushroom that closes up like yours at night but reopen nicely once the lights cut back on. We never spot feed. Good luck!

 

Not that I'm aware of do they sell a test kit to test for copper. As far as the plumbing it's all pvc and the only thing that was metal at all was the shafts of the PH that I changed to carbon fiber rods.