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Both genders of Electric Blue Johanni (melanochromis cyanorhabdos) are blue/black horizontally striped fish. The Johanni (melanochromis johanni) are all born yellow/yellowish. The females remain that color while males transform into blue/black fish.

The orange one is a red zebra (metriaclima estherae) . The blue/black horizontally-striped one looks to be an electric blue johanni (melanochromis cyanorhabdos); pseudtropheus demasoni's have vertical stripes.

The two maingano and two 'electric yellow cichlids' are mbuna's (african cichlids which originate from Lake Malawi), and can have aggressive traits of varying degrees depending on variables. Mbuna's (long term) are best kept in larger tanks and in greater numbers (55gal minimum and at least 2...

What are its tank mates? Any female venustus in the tank?

When taking into account the shape of the fish, it looks somewhat like a metriaclima msobo. The electric blue johanni (melanochromis cyanohabdos aka maingano) is more 'torpedo shaped'; the cichlid in question appears to have a bulkier 'build'. But msobo's have blotched or streak patterns not...

If the focus is on a primarily male peacock tank, I don't think that a "centre" fish would be required. Also, a 75gal might be more appropriate for these fish; though perhaps a person who keeps a predominant peacock tank can chime in. If the 'blue dolphin' in your list is cyrtocara moorii, you...

The frontosa would ultimately require a larger tank due to the size they attain (they also do best in frontosa colonies).

Very Nice!

That's a juvenile cyrtocara moorii ('malawi blue dolphin'), a type of hap. The youngsters will display black blotches occasionally (usually when in a submissive mood). They get larger than most mbuna's and max out at about 8" to 9"

That is indeed the case for the herbivorous african cichlids (due to their much longer digestive tract), but carnivorous cichilds (such as the frontosa rubigonz has) will thrive on a high protein diet. But yes, you'll want to to be cautious with high-protein food items (worms, plankton, certain...

Eight demasoni's may be the bare minimum due to their conspecific-aggressive nature; stocking a good dozen (or more) would be a safer bet. Regarding your earlier question, I currently keep tropheus with my mbuna's (very similar behavior and dietary requirements). No issues between these two...

For those species, 20-30 (plus or minus) fry apiece (this quantity is typically smaller perhaps by half for first-time and inexperienced mothers).

The kenyi has already undergone a color transition as both genders start off as light blue fish with black stripes. The demasoni and OB zebra colors are as they should be, as the demasoni matures it may become more vibrant. The colors of the demasoni will go from dull black with light blue...

1. Male kenyi (Metriaclima lombardoi) 2. Demasoni/(Pseudotropheus demasoni) 3. OB (Orange-blotch) Zebra/Metriaclima estherae (OB)

Nice! Thanks for posting the pic!

Are you able to post a photo of this little one? It would be interesting to see a venustus sporting dimorphism at that small size.

What's not to like about frontosa nuchal humps? :lol: The nuchal humps of the southern frontosa/gibberosa variants isn't as pronounced as this burundi's is. The frontosa in the link below tried to eat its peacock tank mate: I guess he got tried of Krill... - Cyphos.com

Socolofi's aren't any more predispositioned to hybridize than any other mbuna species. As a monomorphic powder blue species there are few mbuna species that resemble them. Keeping them or the other mbuna's in breeding groups should deter most crossings. On an 'aggression scale' of 1 to 5 (with...

It greatly depends on the genders of the demasoni's when dealing with a small group (as well as their maturity). My 125gal wasn't big enough to maintain 5 demasoni's which contained about dozen other mbunas of other species. The five demasoni's were comprised a fully grown 4" male (which is...

Maybe some sort of favites?

In the first photo they look like bleached calaustrea (trumpet coral). They should make a comeback with proper care (very hardy LPS coral). The second photo appears to be leptastrea, an encrusting type of LPS. When fully recovered the polyps will look like this:

http://www.aquariumadvice.com/forums/f100/determining-sex-184015-2.html#post1704509 (Red Zebras)

Not that it will change your decision :cool: , but that is a Demasoni. Male demasoni's max out at 4". Kenyi & demasoni stripe patterns and breadth are significantly different. (not to mention different mouth structure and other physical differences).

Yellow labs are harem breeders; in a 1 male + 1 female scenario the female may get overly harassed, especially in a 20gal when considering fully matured/full grown specimens. Two juvies should do fine for a time.

Msobo's are one of my favorite mbuna, and I keep them in three of my tanks. I find that msobo's 'play well' with most other mbuna species, though they can be fairly aggressive among their own kind, particularly the females (female vs female aggression seems to be very pronounced). I've been...