hammons.david Posted December 22, 2014 Share Posted December 22, 2014 I have some zoas and they all open, but not for the whole day. Is that normally, because I would like to get some more but I don't want them to die. Link to comment Share on other sites More sharing options...
mrmaytagg Posted December 22, 2014 Share Posted December 22, 2014 May be your light intensity. How high are they in your tank and what lighting are you running? Link to comment Share on other sites More sharing options...
Bpb Posted December 22, 2014 Share Posted December 22, 2014 Zoas will periodically open and close several times a day depending on physical agitation, light, and flow. Be concerned if they close for days on end. Most all coral polyps will follow this same habit Link to comment Share on other sites More sharing options...
Reburn Posted December 22, 2014 Share Posted December 22, 2014 +1 to Bpb. I would make a note at the time of day that they normally close. Are you using LEDs? Do you have a long ramp to your max intensity? Link to comment Share on other sites More sharing options...
hammons.david Posted December 22, 2014 Author Share Posted December 22, 2014 I use a 250w metal halide and there is 16 in of water ( and the light is hung 1 foot above the tank ) between them and the light. When they are open sometimes they are out stretched toward the light. I have the same light intensity through out the day. Link to comment Share on other sites More sharing options...
Bpb Posted December 22, 2014 Share Posted December 22, 2014 Reaching and standing up real tall almost always indicates low light. My zoas in the shade will stretch their stalks as much as 3-4" to reach direct ligjt, whereas those directly under the light will lay flat against the rock/sand. You should have plenty of power in your light, but 16" is awfully high up. Perhaps if you lowered it some. I also see from another post you're considering an led switch though so you'll go through a whole other set of light acclimation experinces when that happens. Link to comment Share on other sites More sharing options...
Viet'spride70 Posted December 22, 2014 Share Posted December 22, 2014 when u said they r stretched toward the light, is it a body or the outer skirts that do? if u can get pics of them at time would help to understand us to help u... not trying to get technical at all. Link to comment Share on other sites More sharing options...
hammons.david Posted December 22, 2014 Author Share Posted December 22, 2014 You must have mistaken me f Reaching and standing up real tall almost always indicates low light. My zoas in the shade will stretch their stalks as much as 3-4" to reach direct ligjt, whereas those directly under the light will lay flat against the rock/sand. You should have plenty of power in your light, but 16" is awfully high up. Perhaps if you lowered it some. I also see from another post you're considering an led switch though so you'll go through a whole other set of light acclimation experinces when that happens. You must have mistaken me for kidwithatank about the switch to leds, anyway I have different types of zoas and they are never flat againist the rock. Should I try to get to flat against the rock? Link to comment Share on other sites More sharing options...
hammons.david Posted December 22, 2014 Author Share Posted December 22, 2014 I will try to get some photos tomorrow. Link to comment Share on other sites More sharing options...
hammons.david Posted December 22, 2014 Author Share Posted December 22, 2014 Also just to note I have a little bit of algae and apestia. Link to comment Share on other sites More sharing options...
Reburn Posted December 22, 2014 Share Posted December 22, 2014 Not all zoas will be flat against the rock. Palys will almost never be. If you try and make them they will cook. What zoas are they? Is anything touching them, even zoas of a different kind. A lot of times they will close up right before a growth cycle depending how many polyps there are. Aptaisa being close stinging them will definitely make most of them close. Sometimes even a pod or bristle worm or crab or snail crawling across them will make them close. Some are just finicky little punks. Link to comment Share on other sites More sharing options...
Bpb Posted December 22, 2014 Share Posted December 22, 2014 Bigtime finicky. Zoas have been some of the most difficult corals to flourish for me. I've had better luck with acropora Link to comment Share on other sites More sharing options...
Sascha D. Posted December 22, 2014 Share Posted December 22, 2014 IF they open when the lights come on at 10, then they stay open all day unless the shrimp touches them. Zoas and Palys are touchy. If any bit of algae or something touches them, then they usually close. I've had mine close up for a week at a time with no harm done. Link to comment Share on other sites More sharing options...
hammons.david Posted December 22, 2014 Author Share Posted December 22, 2014 What is the growth cycle you mention because I have noticed really tiny zoas next to bigger ones. I have some red centered ones and some all brown ones ( sorry I couldn't get the names ). I will try to get some pics today. Link to comment Share on other sites More sharing options...
hammons.david Posted December 22, 2014 Author Share Posted December 22, 2014 This is what they look like just as my 250w light turns on. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.