What in the cooler?

[TCZeli]

They can be. It is not recommended to keep more then 1 as they are VERY aggressive towards their own kind. Best bet is buying one that is smaller then all the other Dats. This doesn't guarantee it wont still beat up the others once it catches up in size, but its worth a try.

 

[StIcKy~RiCe]

I suppose to pick one up today about 6-8" some tempting to back out now.

 

[T1KARMANN]

I suppose to pick one up today about 6-8" some tempting to back out now.

if you put a 7inch NGT in with a 10inch IT,NTT,ST it will probably beat it up
if you are adding it to smaller tigers say 3-4inch it may be OK

NGT are very aggressive from what i have seen

 

[StIcKy~RiCe]

Well i got all size..

13" ST
12" ID
7" ID
6" NTT
3" ID

 

[AquataHolic420]

get a nice 3" NGT! with good colors!