Salt Tank Report is compensated for referring traffic and business to these companies. Zoa Spiders are eight legged creatures that look like a tradition spider. rininger85 If your new colony remains closed, and they came from a lower light environment, they may be stressed due to higher light at the placement in your tank. Sometimes, you may just have a frag or colony that does not like it where they are placed. Zoanthid Eating Nudibranchs are tiny little pests that will sometime take on the color of your coral which makes it harder to see them. We will cover multiple reasons so hopefully your zoanthids will spring back to life again. If placed in too high of a flow area, polyps will have a difficult time opening, which stunts its growth/development. I have it placed in the front of the tank in moderate flow and in the middle of the rock (Not in the substrate but not at the top). 12 talking about this. Zoanthids are animals, putting them under a new very strong light source did effect them. Other water parameters to check are magnesium, calcium, alkalinity. Zoanthid not opening up? Zoanthid species belong to the order Zoantharia, phyllum Cnidaria,which contains more than 10,000 species of animals occupying all aquatic environments (both marine and freshwater) on Earth. Take a look at your colony or frag and see what is near it and research to find out the compatability. I had a Yellow Tang once that was bothering my Zoa colony so much I had to move it into another tank. good luck Ronen They started by not opening and now they are getting this green looking coating on them. I'm finding the blue ones are slowly disappearing and some red ones too. Zoanthids can be a finicky coral and they can be difficult to keep colorful and growing, not unlike the SPS corals. It’s better to have a lower flow than high flow for Zoanthids. Aim to maintain a 78F temperature. Carefully remove the zoanthid from the tank. Take 3/4" of saltwater from the aquarium and pour it in a clean container. You will also be shocked to know that the Zoanthid coral is not really coral at all, even though it is popularly referred to as such. manojkoushik Plankton. Try placing your frag in a place with a little more flow. I'm finding the blue ones are slowly disappearing and some red ones too. They started by not opening and now they are getting this green looking coating on them. PH should be 8.0-8.4 and salinity of 1.025. Hey guys, Just wondering if different zoanthids need different parameters or lighting? Currently, I have 3 tanks that I maintain. Consider yourself lucky the other corals seemed to adjust so well. www.Zoanthids.com Your Ultra Zoanthid and Palythoa dedicated online shop! Without the proper treatment your prized Zoas will begin to show signs of irritation, such as not fully opening while your lights are on. Got zoas in my tank with my sps. https://www.saltwateraquariumblog.com/zoanthid-coral-care-guide LEARNING. Its got me buggered . If you introduce new Zoanthids to your reef tank, it will take some time for them to open up. Another zoa question - since moving these zoas into another tank, these green skirt zoas have mostly closed up (some are slightly open). link to How Long Should You Drip Acclimate Corals? Put on protective gloves to prevent skin irritation. The issues came down to bad water parameters, bad flow location, and improper lighting. 919-BUY-ZOAS (919.289.9627) HOME. I also picked up some zoas last week and they opened up within an hour. We have taken it upon ourselves to search for the best and most exotic polyps and offer these zoanthid coral for sale online. I run moon lights as well and most of the zoanthids and palythoas stay open throughout the night. Asterina Starfish should be easy to spot and they need to be removed. Some colonies are doing really well and some aren't. Join 3reef now to remove this notice and enjoy 3reef content with less ads.