Zoathids not looking too good.

[Obsessed with fish]

I have a 2 different zoas. One of them has been closed for about 2-3 months, the other one has been closed for about a month. Some of the polyps on the zoas that has been closed for a month has darkened in color. On the other zoas each polyp has a big dark patch at the bottom or towards the bottom, on one of the polpys there's a weird blob about 4mm in size covering the closed 'mouth' of the polpy.

The aquarium is 1 gallon and the tanks about 5-6 months old. I have a small sponge filter in there and heaps of rock. Other occupant's include 2 red mushrooms and a few unidentified snails. The zoas get heaps of blue light and I do a 50% water change every week. My 2 red mushrooms just recently detached from the rock and changed position. My water parameters are:
Gravity: 1.025
Nitrate: 3ppm
Phosphates: 0.1ppm
Temperature: 17 degrees celcius.
Ok, I just checked the temperature as I wrote it, I can not believe my eyes, my heater is switched off I will turn it on now, if there are any other possible issues please tell me, I live in new south whales so it's the middle of winter for me. Thanks!

 

[Tiki_Reef]

Need some pics, but to me it sounds like some sort of algae.

 

[Obsessed with fish]

Need some pics, but to me it sounds like some sort of algae.

I'll try and get some pics right now!

 

[Tyler Miceli]

Soak them in a 50/50 peroxide and tank water mix. Leave in for a min or so, shake off and put back in tank.

 

[Obsessed with fish]

Need some pics, but to me it sounds like some sort of algae.

Sorry my phone cameras really bad, and my photography skills are really bad.

 

[Obsessed with fish]

Soak them in a 50/50 peroxide and tank water mix. Leave in for a min or so, shake off and put back in tank.

Alr, ill order peroxide

 

[Tiki_Reef]

Alr, ill order peroxide

Also how is the flow in the tank? You might want to get them in a higher flow area.

 

[Obsessed with fish]

Also how is the flow in the tank? You might want to get them in a higher flow area.

The flows pretty strong, I don't think it's an issue.

 

[John Bolden]

Agree on the dip. Hope the grow!

 

[James5214]

They are closed for a reason. Could be many of things. Mine close like this some times for a few days if there is a little swing in any parameter. Salinity.temp nitrates. Maybe as suggested they need more flow or more lighting. Try moving them to different spots in the tank and see how they act but don't change spots to quick as they need time to acclimate to that new spot.