I like to point out bloat and protein correlation . I dont think its all about protein in the diet that causes bloat. I got a friend who feeds his flowerhorn with only shrimps.
till the day he got him, his Flowerhorn is 7 inches now with a big kok, healthy.
And on the other hand me.
I was feeding my fishes with varied diet like tetrabits, bloodworm,shrimp,pea.
and one fine day i fed them chicken liver , my hungry insane green terror ate like he will never feed again.
and now he is suffering from stringy poo.and not eating.
so what i feel its all about live feed that causes the error.
wether its fishes, or meaty products.
in my opnion, its better to fast the fishes for 1 day, then next day fed them peas.then follow your cycle.
Also i have seen in some food products (local ones), they use high contents of steroids,color enhancers which may affect the fish.
And i got a Flowerhorn from my friend who is suffering from white stringy poo.
its been 3 weeks and he is not eating anything, moves slowly, i tried everything including
metro, salt, i even force fed him the medicine.
no help
and all i am doing is adding medicine to the tank and waiting for him to recover.

I HATE THIS STOMACH AILMENT diseases.
in fishes.