ID Please

[Awestralian]

I rescued these guys from certain death by neglect from a workmate, only im not sure what they are.
He did, however, say the first is a 'crebensis'?!?! Some form of Cichlid........
Any ideas?
Unfortunately i lost one of the two.
Not long after the move to my place and into the new tank, the smaller of the two killed the other, much larger fish, as well as a gold/tiger gourami...
It hasnt harmed the other fish in the tank, which are smaller. Seems only to be aggressive to fish larger than itself.
http://home.iprimus.com.au/jester21/crebensis.jpg

The other 2 i have no idea about.
Do not appear to be aggressive at all.
They are diggers though!
There colours have come out a heap more since being looked after a bit..
http://home.iprimus.com.au/jester21/unknown.jpg

[OrionGirl]

Kribensis, often called kribs. Prolific breeder, nasty tempered when gaurding eggs or fry, generally good community fish other times.

[mwood322]

Top fish looks like an african cichlid of some kind. The bottom ones are female Kribensis.

--Mia

[Awestralian]

Oh so the bottom ones are Kribs!!
Cool, thanks.

He though the top one was a Krib...

[scott]

Kribs are from africa.

[Dragon_Lord_Tia]

maybe be an electic blue or a red empoer which i think are also called red tops but im not sure

[Awestralian]

Found a pic in a book, looks exactly like it - Zebra Cichlid...

[Dragon_Lord_Tia]

their are lots of varites of zebra cichlids

[Awestralian]

Oh great!
LOL!
:D