Cichlid ID

Hello,
I'm having a little trouble identifying these young Cichlids. I bought fish 7 for my recently finished Cichlid tank and I believe there may have been a slight discrepancy with the labelling in the LFS.

I know for certain I have bought;
2x Julidochromis Marlieri
1x Tropheus Duboisi

But the 4 remaining (all the same species / genus) are a little mystifying. They are towards the end of the video (45s) darting around each other and seen swimming past the camera occasionally.

Link;
http://www.youtube.com/watch?v=53zaRlFeUBg

Any help in identifying these is greatly appreciated

Thank you so much for your replies.
They do look very much like the 'Perlmutt'

We picked up 2x Labidochromis Caeruleus today from a LFS.
Once everyone has settled down I shall upload some photos of the tank

All together now in my tank I have;

Labidochromis sp. Perlmutt x4
Julidochromis Mareli x2
Tropheus Dubosi x1
Labidochromis Caeruleus x2
Melanochromis Johanni x1
Pseudotropheus Estherae x3
Nimbochromis Venustus x1

Pictures to follow!


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