So some good results and bad results, overall no new corals frags are showing STN/RTN.
Hospital tank:
Teal thin skinned birds nest i removed as it was shedding (diseased tissue). But other two acros have no new STN/RTN and when basted, no coral recedes.
QT Tank:
Looks good! No new victims. Fingers crossed. Certainly plenty of thin skinned acros that could be susceptible.
Any who care, summary:
QT tank with 60 or so frags showed one frag with STN, RTN. I removed, dipped in iodine, to put in hosptial tank.
In hospital tank, i treated with cipro, chemiclean, melifix, and two other antibiotics. Same level dose as they recommended for fish. Added small dose of kalk to raise PH. Lots of aeration. Basting and 100% water changes, with renewed dose, at least once a day. Water changes from clean display tank.
When another two frags in QT showed signs, i removed them and added to hospital. Treated entire QT with melifix, Cipro and chemiclean for about two or so hours, until a couple LPS of all things showed stress (acro polyps never closed?...). Added kalk too.
Then basting and 100% water changed with clean display water. Added UV and carbon, skimmer on full.
My thoughts are that:
1. This Coral and disease progression specific. The stag and highlighter acro are bearing it out. Other teal smooth skin and strawberry shortcake succomb.
2. That said, i think treatment helps. My past experience is praying has worse result then this aggressive, but careful i hope, approach.
3. Kalk and melifix help make the environment unsuitable? Bad bacteria by definition like lower PH? Reproduction ability to attach to corals lessened with melafix? Melafix attacks small parasites, if issue?
4. Antibiotics treat bacterial infection. Just a guess on what is effective and if caught in time. When my dad was almost killed by sepsis -- they toss A LOT -- of different antibiotics at him. It saved his life. I took the same approach. But i did check to see the antibiotics could play nice together.
5. Basting and water changes and big ones. Just makes sense to me. Keep infections clean. Get those nasties out! Display water with correct bacterial load helps?
6. UV helps? Don't know, but assume so (after antibiotic treatment).
7. One gallon hospital tank with small heater, light, and pump is well worth having laying around. Ideally, numerous would be best.
Anyway, its just been 48 hours, but seeing corals open in QT, 50% of treated hospital corals stop tissue recession (other two/half died) and no new cases in QT, makes me much less anxious...