Rainbow bubble tip Anemone shrunken?

[40custom]

Ive had a rbta for almost 6 months now and he has been small and shrunken for months now. He eats and has some small bubbling but he just never opens up like the day i got him
Nitrate is my biggest culpret as im close to 0 due to hair algea outbreak…
Phos is also high .25 and that due to not having a skimmer so nutrient export is very annoying and expensive. Im getting one xmas so that should help
Par is around 200 ive been slowly cranking it up a tad my softies dont seem to care although the par where they are placed is lower about 12-14k spectrum
Alk 9
Ph 8.3
Mag 1300
Calc 470
Phos .25
Temp 78 F
Nitrate very low close to 0
Flow is low to maybe low/medium
Any thoughts

 

[Gumbies R Us]

Have you made any recent changes to your tank?

How is everything else doing in your tank?

 

[40custom]

Have you made any recent changes to your tank?

How is everything else doing in your tank?

Everything else seems to be okay all my euphilia and leathers seem to be fine. I has like 3 sps frags but they were half bleached when i bought them so not really sure on those but they seem to be fine. I checked just now but the lights are still coming on so the corals are still a little small i can update a picture here in a few hours. My zoas are already open and look great rn however

 

[Gumbies R Us]

I would provide a photo of the rest of your tank once everything is open. I am also going to take @OrionN here too to help you out

 

[40custom]

I would provide a photo of the rest of your tank once everything is open. I am also going to take @OrionN here too to help you out

This is what im working with