09-01-2011, 04:45 PM
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I would actually guess female for the jack due too all the spangling on the gill plate.
The first pic is a pseudotropheus socolofi. The other one could very well be a sub-dominant male and not a female venting is the only way to determine gender 100%.
The second pic looks to be a small Red Zebra
or metriclima estherae.
You have some hard hitters in that tank so I would watch aggression. Also do not sell/give away any fry from this tank for you defiantly have some hybrids in there.
PS:scientific names might be mis-spelled.