Zoa questions

[dbraun15]

I have had about 10 different kinds of zoas in my tank with no problems--this weekend, 2 small colonies have close up and haven't opened in a couple days--I have inspected for nudis and to see if anything is snacking on them--my other colonies are unaffected--normally they would close up for a few hours and reopen with no problems--ideas? water was tested yesterday with 0 trates, trites, ammonia--thanks in advance for the help--

 

[matter1331]

is there anything in the tank that could be stinging the zoas like aptaisia or another coral?

 

[dbraun15]

There are no corals or anything close and the 2 colonies of zoas(that are closed) are on differents sides of the tank--

 

[YellowDesmo998]

Has your water flow direction changed? Do you have snails that may be grazing around them? Just thinking out loud here…

 

[dbraun15]

My water flow hasn't changed and don't have any new snails that are grazing--when that happened the zoas would only close for about an hour--it's been 2 days--i don't get it either--the zoas have been in my tank for 2 months--