I just received my Scleropages jardini 8-9, walking catfish, Panaque watermelon 6-7 L330, and Hemiancistrus blue phantom plecos L128. All are in great shape and floating in my 180 gallon which has a 6" jardini. Hope all will play nicely together if not I may have to put each in own 125 gallon tank (corner). Any suggestion on order of adding and what to "say" to them to help them get along together would be appreciated here.