Red spot - scrape, disease, ideas!?

[leliataylor]

The fact that is bilateral makes me think traumatic injury, although it could be a localized secondary infection that has targeted a specific organ. The red area appears to be hemorrhagic. This appears be be in the area of the cranial kidney or stomach. I have seen GI tract infections in young seahorses that first appear as a reddish area directly below the swim bladder and eventually causes a out pocketing of the swim bladder as the GI tract continues to swell. If there is renal involvement triple sulfa would be contraindicated and I am thinking Furan-2 might be a better choice. Another thought is systemic antibiotics are more effective and if he will take ABS they can be gut loaded with Furan-2. The ABS can also be gut loaded with Ascorbyl Palmitate which the ABS will convert to Vitamin C. Baytril injections would be another option although the stress on the fish could do more harm than good.