red zoanthids ( lots o pics)

[Mappelbaum37]

My tank is going through a little algae problem right now and I'm working on getting rid of the nitrates and phosphates in my tank but all my corals are doing great. From easy corals like star polyps and mushrooms to not so easy corals like my frogspawn and yellow leather. They are all doing well except for my red zoanthids. I bought a rock that later separated into 4 different rocks. They weren't attached so well to begin with. Any way all 4 rocks that have the zoanthids are half open half closed and they aren't a really nice dark red anymore. I dont know why they dont open fully because everything else is open fully.

Not such a good pic (zoanthids on the left):
Pic. was also taken a couple days ago

This is the second rock of zoanthids under the big rock in the middle of the pic:

Another rock is right behind the yellow tangs tail. Sorry about the bad pics but the lights are off already and this is all I have:

Here's another closer pic:

This is when the rock was fully together a while ago:

Thanks

 

[Mappelbaum37]

Here's how one of the rocks used to look:

You can see how nicely colored they were and fully open a while ago...(All the way on the left side of pic):

 

[K' Family Reef]