zoas staying closed

[garygonzales]

I have these zoas there are either blow pops or gorilla nipples zoas ..they kinda look the same..anyway...they seem to stay closed up all day....but in beginning they didnt tho...I started with a couple of frags of these they exploded now I have 50 polyps or more..on two separate rocks...for some reason they stay closed all day....but in the morning when blue lights come for 2 1/2 hours they are open and looking good..when whites come on they start to close up..tried just the blues all day but after 3or 4 hours thet close up again...any ideas..

 

[coralcruze2020]

I would say... first try dipping them. Even short freshwater dip works for me and then try some iodine. test to be sure your iodine levels in your tank are where they should be.

 

[garygonzales]

I dip and everything too...nothing seems to work..it been like this for3 months now..but all other zoas are doing good ,,

 

[Sk8r]

check your water parameters.

 

[garygonzales]

yea I probably should of posted that...
salinity =1.026
alk =8.5
temp =79
nitrate =0-5
phos -=02
tank is over twelve years old...