woo hoo - new tank

[aquarius]

this site might help http/animal-world.com/encyclo/fresh/fresh.htm
just click on each type of fish and under "water region" it says whether they're top, middle or bottom dwellers

 

[zipo]

hello
i find my shoal of penguin tetras very relaxing to watch (as does the cat)
We too fancy a shark, a black tipped one so i think the penguins will become food for either the shark or the cat!!
Love Mollie x x x

How large is your aquarium? I have 9 (I originally had 3..but this was even worse) in a 30 galllon tank and they are FRUSTRATING for me to watch since they don't school and just chase each other constantly (well, only about 3 of them do the chasing..they others just try hard to hide and lose the bullies).