Thank you for your nice comments! It's a Pang Long Absolute Blue and I thank Bret Boyd of Shine Aquatics for bringing this baby in. It's about 12" and eating MP and other mixes. Seem to have adjusted well in its new tank...
ammonia
might not be cultivating enough good bacteria. Seachem Stability should help. you might have to double up on filtration to provide ample refuge for good bacteria to cultivate.