normal cory behavior?

[seanleila]

this question is for all of you that have experience with corys. i'm just wondering if their new behavior is normal. for the longest time almost two years, i had only one leopard cory in my 55 along with some other fish. he/she was the most active little thing, always swimming around, swimming up and down constantly. then i got a spotted cory for company and it calmed down a bit, still swam everywhere, together but not as much. recently, about two months ago, i bought three more leopard corys to add to the tank and now they all just congregate in one spot and very occassionally swim around. they look like they're hypnotized or something. they do get excited when i drop in their pellets and the whole tank comes to life but ohter than that they really don't move around much. water is fine, just did my bi-monthly water change the other day, nothing new s going on, they're not sick. so can this be normal? are they just calmer now cuz they're in a group as they like to be?

[crazyred]

I don't know all that much about cories, but from what I gather they are fish that need to be in groups, so perhaps they are more secure in the tank now that there are several of them. Perhaps the need to 'patrol' the tank has ended and they have a spot they can all hang together now.....just a stab in the dark, but it seems plausible.

[andy1_52]

I agree with red. I was looking at putting some corys in my tank but never did. it seems I remembered the sign sayin they should be in groups of at least three if I remember correctly.

[Buddha_Red]

unless they are fish that kill each other, make sure to buy an odd number. Schooling fish (which is usually tetras) but there are many, many and a lot!

[seanleila]

well like i said they're all alive, all eating, so i figured healthwise they're ok but i just miss my active little cories. it is neat to see them all moving around together though. thanks for the input.