What happens if you overcrowd a tank?

Question

Do the fishes die?

Answer 1

Probably not but you'll need to clean it a h**l of a lot!

Answer 2

They could if they are territorial fish, more impartantly, the water quality will become toxic to the fish if there are too many and your filter cannot keep up with cleaning the tank water.

Answer 3

The possibilities are: the fishes can die or the fishes just won't grow. Since the purpose of taking care of fish is to grow them and nurture them, there is no point in overcrowding the tank. You would just waste money.

Answer 4

either the fishes will die or they wont grow properly which typically leads to an early death anyways. the tank will also become dirty faster. when i worked at petsmart the tanks were over crowded with fish waiting to be purchased and we had to do a "dead scoop" twice a day where we scooped at least 100-200 dead fish.  

Answer 5

They will be squashed up agaisnt the side of the glass and u will see there eyes pop out

Answer 6

they can

what happens is the fish get stressed. they need room for their own territory. if fish get stressed, fish get ich, and ich kills!! sometimes lol

they could also miss out on food if not fed enough and starve. its just better to not over crowd them

=]

Answer 7

Yes, the toxin levels can get to high and they will die. They also might start fighting with each other which will also kill them. You don't want to overcrowd your tank.

Answer 8

Some could die.

Overcrowding creates unstable water conditions and promotes aggression in fish, especially territroial ones.  Too many fish creates a large bioload that a filter can't handle a effectively which means your water gets dirtier quicker which may create amonia spikes that will kill fish.

Answer 9

overcrowding means tons of things, the fish won't have much oxygen (due to how much is needed for each fishes survival),the waste will increase in number, meaning if you don't clean it, they will atch something. go to the site in sources for more.