my spiny urchin

hey my urchin is moving like every ten hours or so and when he moves some of his needles are left behind whats wrong, my chocolate star is now on top of it and seems not wanting to moving but the lil suction cups are moving (i stopped my powerhead) help is he dieing

check ur PH -Might b out of whack - urchins are pretty hardy but like anything don't like a really high PH ( as well as other parameters out of norm) . Believe me , I have had that problem.

Also check nitrates, they are especially sensitive to that.

Can he be isolated so he isn't being picked on?

trigger you guessed it i dont know y my giant hairy hermit was messing with him and my choc. star kept piggy back on him i took him out but i think his not bouncing back i dont know what to do

hello now my brown brittle star is out in the open an has laid limp for over ten hours and moved only once an that was when he flipped over for a full hour is this something i should be worried bout

What are your water parameters testing at? If you don't have test kits, you should buy some, or bring a sample of your water to your LFS and have them test it for you.

nitrate showsm dull sun yellow, phosphate between .25 am .50, carb 71.6, cal.420

i think he is dieing now he has a split between his bottom two limbs and moves so very slow like he is waving goodbye i mean he hasnt moved from that spot now twenty four hours just waves his limbs around i turned of the power heads to make sure it wasnt fellow causing the wave my numbers are still good he still has his color only its some strings hanging from on top of his back

Do you have a standard test kit?

One that measures

Nitrite
Nitrate
PH
Ammonia

That is what you need to test for right now. Something is obviously wrong