Polyps hate my tank and I'm lost.

What kinda lighting and do you know your par
Reef breeders v2 main light, sitting between a 4-bulb T5, flanked by one or3 blue sky on each side of the fixture.

Par varies, the tank is 30" deep. Sandbed is anywhere from 100-200 and anything near the mid/top of the tank is around 350-450
 
Sg 32.5-35 (slow gradual swings)
Thats a pretty big swing for Salinity. Do you have a ATO
 
Sg 32.5-35 (slow gradual swings)
Thats a pretty big swing for Salinity. Do you have a ATO
Mine swings more. It's linked to temperature swings. I set the salinity and ignore it. If your system monitors salinity, as with an Apex, salinity changes with the tank temp.
 
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Sg 32.5-35 (slow gradual swings)
Thats a pretty big swing for Salinity. Do you have a ATO
I do have an ato. I'd say a swing takes 2-3mo to happen, it's slow. Day to day it's maybe 0.2-0.4 swing (with temp). The swing above happens over a lot of time from salt creep and whatnot. I've been doing a better job keeping it near 35 lately.
 
The swings are not helping with salinity but potters and possible copperband may be part of the issue. Are they?
Set your cell phone on video mode for about 60 mins and walk away - YOU MUST walk away as they know youre there. Review the video thereafter and see who may be nipping, If they are
 
Mine swings more. It's linked to temperature swings. I set the salinity and ignore it. If your system monitors salinity, as with an Apex, salinity changes with the tank temp.
It’s true that temperature can affect salinity readings, but it will have NO effect on the actual salinity.

Apex has a temperature compensation feature. :)
 
The swings are not helping with salinity but potters and possible copperband may be part of the issue. Are they?
Set your cell phone on video mode for about 60 mins and walk away - YOU MUST walk away as they know youre there. Review the video thereafter and see who may be nipping, If they are
I have a wyze cam set 24x7 with motion detection on certain corals. They don't nip.
 
It’s true that temperature can affect salinity readings, but it will have NO effect on the actual salinity.

Apex has a temperature compensation feature. :)
Not in my experience. Want a picture? :beaming-face-with-smiling-eyes:
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1702778318434.jpeg
 
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Correct. That's why I said I set it and then ignore it.
I never said you won’t get fluctuations in salinity readings. I just said that temperature alone cannot cause them to actually fluctuate (in real life).
 
IMO If you don't have problems with parasites or fishnip and parameters then this seems to be a problem directly related to the correlation between light and nutrition. This issue probably needs a more professional explanation. I had the same problem as you and resolved it after slowly raising my NP level, my Par level was at 350-500.
 
My money is on the angel. I have no polyp extension because of a bi color blenny. It only takes them nipping the base a time or two a day for the sps to only polyp out at night.
 
When I kept sps reefs and added new frags…it’s all about survival and patience

Keep the frag alive, and if it’s happy and growing….then just wait

My first 6-9 months of a new frags life would be encrusting, establishing a base, and getting growth. And then it would show start to get good pe and growth would increase

All these sps took around 9 months before I started getting good pe. I grew out that yellow green Millie colony from a 1” frag. Patience pays off. Don’t give up. Your colors look good

The purple bonsai pe took a long time to show up. Months and months. And it was my slowest grower in my tank.
 

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IMO If you don't have problems with parasites or fishnip and parameters then this seems to be a problem directly related to the correlation between light and nutrition. This issue probably needs a more professional explanation. I had the same problem as you and resolved it after slowly raising my NP level, my Par level was at 350-500.
What are you raising your levels to?
 
What are you raising your levels to?
I went from NO3 4ppm, PO4 0.05 to NO3 30ppm, PO4 0.18ppm. I dosed ammonia daily and a little reefroid twice a week. This process went on for 2 months and now the PE has improved a lot. I guess the reason is that the light intensity is greater than the available nutrient level.
 
I went from NO3 4ppm, PO4 0.05 to NO3 30ppm, PO4 0.18ppm. I dosed ammonia daily and a little reefroid twice a week. This process went on for 2 months and now the PE has improved a lot. I guess the reason is that the light intensity is greater than the available nutrient level.
Or maybe the corals are realizing there's food in the water to catch(reef roids)? Like training nps corals to open during the day...
 
Or maybe the corals are realizing there's food in the water to catch(reef roids)? Like training nps corals to open during the day...
I don't think so because before that I also used reefroid and phyto quite often. Corals always react to any type of food, including fish's pellets
 
I don't think so because before that I also used reefroid and phyto quite often. Corals always react to any type of food, including fish's pellets
For how long did you feed that same way?
 

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