as you observe that when human die they stink when kept for a long time
they don't stink if their organs are removed or they are dipped in salt water, it is same for fishes too.
...'cause they like fish sticks.
They all Stink
It will stink and make ur fish sick.
Only when they stink,so the answer would be often.
It will stink like dead fish.
i gurl who smells like fish in mess with every boy she is a drity hoe
This maybe is because old rotted food is in your bettas water.
He said that fish and guests begin to stink after three days.
ya Sweden!
Fish,Dophins,Stink Rays,Sharks,Turtles,Coral
No. It Can Be Very Smelly In Fist Environment's Sometimes
the head should go down first because it has air in the head...