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They definitely look bothered and in protection mode.
Did you target feed them?
Did you, a fish, or invert rub or crawl over them?
Is the light to much or not enough?
What are your parameters?
Notice any bugs or pests on them?
I hope that's not the case. I'm not expert but ive seen a lot of people keep zoas with stock lighting for biocube. But hey came from a highlight environment. Could they maybe just need to re adjust? I've been doing to light acclimation of sandbed then moving up the rocks should I try a high point in the tank and see if that helps?From what I am gathering a week with no light will do that. CFL does not work for corals. You need LEDs with a high enough rating, T5s, or Metal Halides. Unless the coral is non photosynthetic type(NPS). Zoas are very much photosynthetic. So they will die if you do not get sufficient lighting for them.
I hope that's not the case. I'm not expert but ive seen a lot of people keep zoas with stock lighting for biocube. But hey came from a highlight environment. Could they maybe just need to re adjust? I've been doing to light acclimation of sandbed then moving up the rocks should I try a high point in the tank and see if that helps?From what I am gathering a week with no light will do that. CFL does not work for corals. You need LEDs with a high enough rating, T5s, or Metal Halides. Unless the coral is non photosynthetic type(NPS). Zoas are very much photosynthetic. So they will die if you do not get sufficient lighting for them.
Just want to point out for accuracy... zooxanthellae isn't an algae... it's a single cell dinoflagelate. I don't think anyone will assert that CFLs are the best way to grow corals by any means, but enough people have used them to grow corals that it can't really be debated... they CAN grow corals... that being said, they won't handle anything more than low light corals (your only getting 20-30% of the PAR generated by the bulb into your tank), and your FAR better off using T5s, LEDs, or Metal Halides.So you are telling me you would use CPL to feed your corals or have you ever seen some say I am switching back to CPL? Let's be real about this. No one here in their right mind is using CPL lighting if they know anything about corals and how little use they would be for a coral. So saying they would work is really extreme especially since you have no experience doing so in a long term(meaning at least 2 years). If that was the case everyone would be doing it.
I had CPL on my 20g. Tested my Phosphates at my LFS. The first words out of his mouth was "Jeez you must have a serious algae bloom." I showed him a picture of the tank. That was 4 months old at the time. Never got diatoms or GHA. Soon as I put a T5 Blue+ & Coral+. Boom! There it was. Why was it there now and not for 4 months, because I could now feed photosynthetic plants and corals.
Where did I say I'd use or reccomend CFL? I'm simply saying a blanket statement of how CFL doesn't grow coral is false. I don't think you should lead the OP into believing his light is 100%the issue on why his zoas are closed. Also, how do know how long I've been reefing or assuming you know my level of knowledge? Being "real" about this is actually reading a post and not using assumptions.So you are telling me you would use CPL to feed your corals or have you ever seen some say I am switching back to CPL? Let's be real about this. No one here in their right mind is using CPL lighting if they know anything about corals and how little use they would be for a coral. So saying they would work is really extreme especially since you have no experience doing so in a long term(meaning at least 2 years). If that was the case everyone would be doing it.
I had CPL on my 20g. Tested my Phosphates at my LFS. The first words out of his mouth was "Jeez you must have a serious algae bloom." I showed him a picture of the tank. That was 4 months old at the time. Never got diatoms or GHA. Soon as I put a T5 Blue+ & Coral+. Boom! There it was. Why was it there now and not for 4 months, because I could now feed photosynthetic plants and corals.
Zooxanthellae are photosynthetic organisms, which contain chlorophyll a and chlorophyll c, as well as the dinoflagellate pigments peridinin and diadinoxanthin. These provide the yellowish and brownish colours typical of many of the host species.[1] During the day, they provide their host with the organic carbon products of photosynthesis, sometimes providing up to 90% of their host's energy needs for metabolism, growth and reproduction. In return, they receive nutrients, carbon dioxide, and an elevated position with access to sunshine.[3][4]Just want to point out for accuracy... zooxanthellae isn't an algae... it's a single cell dinoflagelate. I don't think anyone will assert that CFLs are the best way to grow corals by any means, but enough people have used them to grow corals that it can't really be debated... they CAN grow corals... that being said, they won't handle anything more than low light corals (your only getting 20-30% of the PAR generated by the bulb into your tank), and your FAR better off using T5s, LEDs, or Metal Halides.
It says you have been a member since 2014. I never met anyone hanging around in a forum for 3 years not involved. So there is 3 years I know you have been in the hobby..Where did I say I'd use or reccomend CFL? I'm simply saying a blanket statement of how CFL doesn't grow coral is false. I don't think you should lead the OP into believing his light is 100%the issue on why his zoas are closed. Also, how do know how long I've been reefing or assuming you know my level of knowledge? Being "real" about this is actually reading a post and not using assumptions.
I'd be more concerned with nitrite being present in the water. I'm sorry but PC lighting can grow coral and there are plenty of members on here that can prove it. Water parameters should be your concern then in the future you can upgrade the lighting. Your current llighting is not the cause of your zoas being closed and someone stating they won't grow coral is 100% false.
Because we all start reefing only when we join a forum. LolIt says you have been a member since 2014. I never met anyone hanging around in a forum for 3 years not involved. So there is 3 years I know you have been in the hobby..