i think every people having different in caring and growing polypterus experience, i had a example here recently, WC combo with CB, in the end CB pee take over whole tank become dominant and the rest all WC all slimmer and not growing in the tank, it can be alot of issue? but what i can hear from you guys were, WC definitely grow faster and larger if given proper care compare to CB, BUT it doesnt mean CB cant grow to its potential and max size right? one of the answer from you guys, WC 20%- 80% per week, 80% might stuned the fish? i dont know, but im doing it 20% per week first when i was keeping but i dont know anythg about pheromone, haha. second, variety of food, of course "LOAD" live food the best so far? thirdly, about setup, alot of keeper here share their experience that, size of the tank doesnt matter to polypsterus? what is that suppose to mean? i thought the larger the tank for the fish better? they said limit of space wont stop polyps growing?
Biggest tank possible, best food possible, top quality water (aka water changes) reasonable stocking levels = best potential to hit max genetic size of fish