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The cichlid Lamprologus Meleagris is living in Lake Tanganyika and makes his productions in shells.
three or four years ago was very difficult to find this species, perhaps as many others can now be obtained without difficulty, has genius but against other powerful lamprologinos (pj. Buescheri) falls a bit short, I can maintain both in pairs or in groups of one male with several females, but always taking into account both liter aquarium as the separation between the females.
I've kept in various ways but always with a pH of 8. since you need hard water, and the rest of aquariums recreate this fantastic lake for decoration do not have to be careful about the type of rocks or substrate is limestone or not, you should have a substrate of sand (I use beach sand) with some shells and stones that make separation of the territories, the most important sex difference is its size being the largest male between 5-7 cm. and female littlest between 3-4 cm. First

kept in a tiny aquarium of 30 liters a male and a female showing the two pretty genius and marking their territory pretty well, passing through.
juvenile male

juvenile female

Then I passed this couple to 300 liters with a pretty fellow cane (L.. Buescheri, N. Caudopunctatus, etc, stuffed them all at once would otherwise great hardship). In this tank got to do on but could not see the truth fry and the male but the female remained had to lose, both the male and the other fellow. This video
were not yet partners.

The couple

First Time

As the tank was devoted mostly to rockers as the decor was quite rocky and we adapt some shells from the terraces and not adapt poorly made several proposals since, with time and experience in servicing I realize this is quite an achievement given that they like much left half-buried shells and surround sand.

Later I started a new project and decided to devote this aquarium basically shell-dwelling Lake Tanganyika and in this case came two males and two females, things change especially with colleagues, now went from being the weakest to be the strongest, the largest male took power and stayed with an area on the left side of the aquarium along with a female leaving half of the aquarium to the other female and expelling the other male to the other side of the aquarium, such as 300 liters and 1.5 meters long as there are no problems with females overweight or not with another male. Very important is that females not see or have any tall stone between the shells as they are a little intolerant among them.
In this video we see how the two females are placed.

Recommendations:
In my personal opinion it ideal to take pairs, trios, etc. aquarium is to use a big boy for the agro not look very strong, certainly if we use for this purpose a 60 liters a copy shall be the owner and the rest will be cornered by the aquarium until it forms a pair but I remember that when they are not partner aggression between male and female which also exists with the smaller aquarium worst passes the thread is usually small, when couples are formed with 60 liters may be sufficient but for a trio have to work hard for decoration are not only between them and have more liters. Normally these fish

pick up a shell and make this their headquarters back at night and when they think they are in danger, often left half buried in the sand so it is best to keep with a substrate of fine sand that has a height of about 2 cm., no need to put together as many shells to make groups of two to three shells them and choose and do not have any objections to moving them to leave at will, which in my case always leave a shell isolated near a stone, in contrast to other shell-dwelling types who inhabit the tanganika N. Similis who prefer large shell banks to find more comfortable and protected.
We know if you have an update before you see the fry because the female is not separated from its shell and not let anyone get close including the male.
A good way to know if these fish are comfortable in our aquarium is when we see this marvel.

I hope it is useful to remember these experiences and they have these cichlids in the aquarium, be careful with your fingers when metamos hand into it are thrown viciously biting, jejejeje, for anything you know where I am.