Urchin help

[Perthegallon]

Hello guys bought a new urchin a few days ago I did acclimate him slowly and put him in the tank the fish store uses the same salt water as me and keeps the parameters pretty much identical as well.
Though my urchin has been not moving much and lose a few pricks here and there. I tried to help him out by providing him in a good spot on the rock with coral line and offer algae wafers.
I don’t think he’s on the verge of death but want to help him any way I can. Another other suggestions

Also please before responding I did do a water change before putting him in the tank and check parameters everything looks good and I do have a Ro/Di machine and ato to keep everything consistent

my tank temp is 76 as well and doesn’t vary more then 0.3-0.5 at most

I included a picture of him as well

 

[killer2001]

Post your parameters (and a full tank shot). Looks like there is plenty of algae for him to eat, but if hes losing spikes that is not good.