Angelfish looks sick

[Langer0090]

I’m not really sure what is going on I have two black angelfish that both look like they are almost losing their slime coat if that makes sense. View attachment 1
These two white angelfish will only come to the top to eat otherwise just stay in the corner with pinned fins.
Nitrate ammonia nitrite 0/0/0
I recently had a heater malfunction and my tank dropped from 81 to 72 degrees overnight a couple nights ago.
If anyone has suggestions that would be great. Have any questions let me know.
Tank is now at 81 degrees
Thanks

 

[Langer0090]

It uploaded the wrong pic here is the black angels

 

[charliebankston]

3 pictures came on your thread. Is that 2 different tanks?

 

[Brookster123]

3 pictures came on your thread. Is that 2 different tanks?

That sw pic is some ghost pic that has been popping up for years. Some say you can still find that tank roaming the woods at night.

 

[charliebankston]

That sw pic is some ghost pic that has been popping up for years. Some say you can still find that tank roaming the woods at night.

Haha! Scary! Now I can't sleep!

 

[charliebankston]

That sw pic is some ghost pic that has been popping up for years. Some say you can still find that tank roaming the woods at night.

I was about to tell op, I think i know what your problem is, with live rock and coral in there, lol

 

[Langer0090]

Haha I was like what is that but any idea on what’s going on? I think something with slime coat on the black angels. On the whites it’s almost like ammonia poisoning but my ammonia has been no more than .25 ppm in the past month.

 

[Brookster123]

They dont look happy, clamped fins and all. I'd up the wcs, may have a mini cycle going from the tank swap. Daily dose prime in between to detox water.

 

[Langer0090]

Thanks I have been dosing prime as well little more than I need but nothing crazy