ok, so thing took a turn for the worst, the fh had stopped eating and is just sitting on the bottom of the tank....You're not using straight MB, you have a combination of MB, MG and acriflavine. Treat today an treat tomorrow at half dosage. Then just keep the tank very clean and it should heal. I can't stress enough the importance of a clean environment, water, substright and filters. This will prevent 99% of future issues.
Yeah I got the best advice, followed to the letter, I guess something got in and took over!Sorry to hear about your fish probably got infected somehow. I lost my f1 red devil after 6 years her sister killed her in a quarantine tank. My big make Midas attacking both and a few hours later my red devil was bleeding internally barely moving and decided to put it in a 10 gallon tank all I had setup and it died two days later. Things happen you tried.
I'm not as sad since she gave birth to thousands of fish and still have a lot I sold and some in my tank.
Definitely looked like some sort of fungal or parasite that got in and took over.
I've lost my 17 inch massive flowerhorn from some sort of infection. He slammed into my tank when he got spooked and got hurt bad. He was so meaty with a big kok but was ugly lol