At 4ft size jau have poor transferability. We lost Zazula for no good reason other than short stress and breakdown of the immune system. Netted quickly in ~5 min, transferred quickly <1 min to a tank next door. First looks alright. Then round spots appear on the body after 1-2 days and begin to grow. Looks like a bacterial infection of the skin, mouth, fin eating type. Two injections of a mix of 2 antibiotics, wide spectrum gram-positive and gram-negative, erythromycin+doxytetracycline hyclate didn't help.