Why do you want to "rescue" a half dead and probably diseased fish? Why not buy a healthy one and keep him from the disease the other probably has? You are gonna spend $$ on meds and risk contaminating tank and everythig with it.. for a sad little betta?
Because it gives us a warm feeling inside to watch a "half dead and diseased" betta transform into something beautiful.
*points to avatar* He was pink, had an ammonia level that turned the test water Blue and had basically no fins.
why would someone want to spend $20 on a fish and then another $35 or more for shipping for one AB fish??
Actually, I can see WHY people would but I like getting local ones that need TLC.
Anyways, I would figure out what's wrong with him before medicating. He might just need clean, warm water...and some AQ salt probably wouldn't hurt unless he has internal parasites or swim bladder issues
If you have access to somelace that sells API meds, it might be a good idea to have furan 2 or triple sulfa on hand- just in case.