Lake Malawi Species • Demasoni

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Demasoni

Postby Tinng321 » Sun Feb 23, 2020 11:02 pm

I have a 75 gallons Mbuna tank and 2 of my demasoni died this past weekend. I have a red zebras, yellow labs, OB’s, blue cobalt, Kenyi, albino socolofi, auratus and a few peacocks. They all get along fine. Very minimal aggression. I feed them north fin exact one in the pic. One has swim bladder disease I think because he was on his tail (vertical). The 2nd one just stay in one spot and eventually died. His poop looks like white tiny thread. Is it the food I’m feeding them?
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Re: Demasoni

Postby DJRansome » Sun Feb 23, 2020 11:34 pm

No it is probably the stocking. Do you have one of each of all the fish you listed, and are they all male? When you do a tank with such large variety there are two guidelines: All one gender, and one of each species with no look alikes.
125G Borleyi, Multipunctata
75G Demasoni, Msobo, Lucipinnis
75G Calvus, Similis, Petricola
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Re: Demasoni

Postby Tinng321 » Mon Feb 24, 2020 8:28 am

I have a least 3 of each and at least 1 male to 2 female. So, is the north fin ok for herbivores?
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Re: Demasoni

Postby ken31cay » Mon Feb 24, 2020 8:48 am

I use Northfin Veggie for my mbuna tank but Northfin Cichlid Food is fine for herbivores. For some of your species you should have more females, ex/ Kenyi and Auratus do better with minimum 1m/7f ratio.

You might see minimal aggression but as they mature you will very likely see alot more, especially with the Kenyi & Auratus which are two of the most aggressive mbuna.

If I had your tank I would stock 1m/7f of both Kenyi and Auratus and no other fish in the tank, with plenty of rocks/places of refuge. Or remove the Kenyi & Auratus and stock more peacful mbuna.
450gal Frontosa (blue Zaire Moba) & haps
180gal Labeotropheus Trewavasae Chilumba & Kenyi
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Re: Demasoni

Postby DJRansome » Mon Feb 24, 2020 9:34 am

In a 75G you have 7 species of mbuna and several peacocks.

Shoot for 20 fish that mature <= six inches and that is if you have all mixed gender...with a couple of male peacocks I would not do more than 3 species.

Think in terms of 4 species of peaceful mbuna max for a 75G. As ken31 says, always at least 4 females/male, and for aggressive species like auratus and kenyi 1m:7f. What we have been hearing over the years from those who keep aggressive mbuna successfully, they are better with 3 species in a 72" tank.

There is likely aggression you are not seeing. The thread-like white feces can be a symptom of bloat which is most often caused by the fish being stressed over time.

Watch for additional occurrances...one fish at a time and it may be a month between instances. When the fish have bloat they stop eating. Watch every fish eat every day for an early warning.
125G Borleyi, Multipunctata
75G Demasoni, Msobo, Lucipinnis
75G Calvus, Similis, Petricola
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Re: Demasoni

Postby Tinng321 » Mon Feb 24, 2020 9:01 pm

Here are some photos. It’s definitely overstocked.
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Re: Demasoni

Postby ken31cay » Wed Feb 26, 2020 7:27 am

As the Mbuna in the tank mature I'd expect increased aggression. I'd enjoy the relative peace now.
450gal Frontosa (blue Zaire Moba) & haps
180gal Labeotropheus Trewavasae Chilumba & Kenyi
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Joined: Tue Oct 09, 2018 12:19 pm
Location: Cayman Islands

Re: Demasoni

Postby DJRansome » Wed Feb 26, 2020 2:40 pm

How long have you had these fish together? IME the aggression starts six months to a year after start-up. For my first tank it was 9 months of peace and wondering why everyone said these fish were so aggressive. :oops:

I also read the advice to have 12 demasoni as a minimum and decided if 12 work, then 9 would as well. WRONG!! Might have worked if I had 1m:9f but never been able to get such a ratio with my demasoni.
125G Borleyi, Multipunctata
75G Demasoni, Msobo, Lucipinnis
75G Calvus, Similis, Petricola
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