Bacterial infection help

[ATD Coral]

I have been losing LPS to what seems like STN looking for some control and prevention suggestions. I have primarily LPS and softies STN has been slowly killing my tachy, weslo, favia, gonis, euphillia, elegance. I have done an icp test and the results did have a few elevated pollutants (sulfur and arsenic) but that was months ago and since I have increased my water change schedule to well over 10% per week. Corals did better but infections have slowed but not stopped.

I have not been dipping my corals and this seems to be the best next step I just had a few specific questions:

What dip would be best for bacterial infections to start: I have revive, lugols, hydrogen peroxide, the dip? any other recommendations?

How long should the recovery time be between dips? 3 days? once a week? or is it based on how the coral did after the last dip and what dip was used?

Are there other supplements then AB+ to help stressed corals recover? Can I give these supplements after dipping to help recovery?



What other suggestions for stopping bacterial infections now and preventing them in the future? I have listed a few items we are doing so far below.


~800L system with under 100lbs of rock 3 bare bottom tanks corals on racks with black box leds, refuge, filter socks, skimmer

Currently using:
Fauna: Balling system, RTN/STN X (day 4 of second treatment), coral balance, coral vitality, bac energy, min s, coral snow, coral sprint, lps pellets, amin, organic ( have not used in months but still have: bacto balls, rebiotic)
Red sea: Black or blue bucket salt, AB+
Revive cleaner


Looking at:
Melafix

Needs to be setup:
ozone
Doser (stablizie alk)

On order:
150v UV
red sea colors test kit (to monitor i, k, fe)

 

[T-J]

What makes you think this is bacterial vs other reasons for STN/coral death?

 

[ATD Coral]

What makes you think this is bacterial vs other reasons for STN/coral death?

It's my understanding that the receeding tissue I am experiencing is caused by brown slime and other parasitic bacterial infections. I also have read that they often are combined with other fungus or virus strains. I'm looking at a gonipora now that was the first coral I dipped a week ago or so and it seemed to help the brown stuff growing inside the necrotic skeleton but it's back again so I'm wondering if iodine or revive is a better option or others have suggested lower doses for longer time periods to penetrate deeper into the tissues.

 

[ATD Coral]

I dipped the two worst corals 2 days ago unfortunately I have not had time to dip every coral yet. I dipped the Brain with revive and the goni with lugols iodine solution for 10 miniutes.

They both looked a little better the next day, pictures included. The brain took longer to bounce back, not inflated until nearly the end of the photo cycle. Brain is still having inflation issues and it has slime / brown bits coming out of the tissue and the mouth is starting to open 24/7. I did a AB+ direct feeding this morning and they both seemed to respond well but still not inflating and still seem irritated/infected and the goni still has some necrotic tissue. Should I dip again tonight and switch the dips? or try a longer and more dilute hydrogen peroxide dip? and can you feed ab+ and other liquid supplements an hour or two after a dip or should you wait 24 hours?

I did find 2 major issues so far with closer inspection:
My phosphate was zero instead of somewhere between .04 and .09 so I am now testing more regularly as I'm not sure what is soaking up the phosphate but feedings will be increased and bac energy (carbon dosing product) will be discontinued until it is at least .4 again

There was a death ray in the morning beaming through my euphillia garden that was +700 par. Being it is outside their normal photoperiod and the total par could have been causing the euphillia to stress and breed bad bacteria to infect other corals.