Jaguar cichlid: Male or Female?

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Although the pics below are not Parachromis managuesnsis, they are P motaguensis, a very close cousin.
And sexual difference in both species are similar.
Here is a mature female
1603625987981.png
note above the lack of spotting on the gill plate and lower jaw.
Now below a male.
1603626057343.png
When the pair is together it is easier to spot gender differences, like the higher profiles of mature males, and more torpedo shape of females.
1603626157946.png
If the fish is not mature, these differences are obscured, and take time to develop, so trying to ascertain sex too early can be problematic.
If your aim is to spawn the fish, it is always best to start with 6 or more individuals, and let them form pairs, the more you start with the better chance of a compatible pair.
Just because you put a male and female together, doesn't mean you are good to go, managuense (all cichlids) have complicated pre-spawning rituals that determine compatibility.
To get the bonded motaguense pair above, I started with 8 young individuals, and in the selection process (as expected) the male killed a few)before settling on the female above, and below.
1603626701076.png
 
Last edited:
Although the pics below are not Parachromis managuesnsis, they are P motaguensis, a very close cousin.
And sexual difference in both species are similar.
Here is a mature female
View attachment 1437268
note above the lack of spotting on the gill plate and lower jaw.
Now below a male.
View attachment 1437269
When the pair is together it is easier to spot gender differences, like the higher profiles of mature males, and more torpedo shape of females.
View attachment 1437270
If the fish is not mature, these differences are obscured, and take time to develop, so trying to ascertain sex too early can be problematic.
If your aim is to spawn the fish, it is always best to start with 6 or more individuals, and let them form pairs, the more you start with the better chance of a compatible pair.
Just because you put a male and female together, doesn't mean you are good to go, managuense (all cichlids) have complicated pre-spawning rituals that determine compatibility.
To get the bonded motaguense pair above, I started with 8 young individuals, and in the selection process (as expected) the male killed a few)before settling on the female above, and below.
View attachment 1437271


Hi Duanes

I took your advice and managed to get 5 more Jags, but I'm currently growing them up a little on a separate container (about 60 gallons) because they were much smaller than the one I have.

(I asked a few of my lfs but the few that carried them said the would not special order them or get them bigger than 2")


Now mine has been growing like weeds and its at 4".

My question is, should I wait to introduce these guys when they are not bite size or should I roll the dice to see if he accepts any for now?

On one hand I feel like it might be better to wait, but then again, in not sure if that may contribute to getting him used to being alone and therefore less chance of accepting a potential breeding mate.
 
Hi Duanes

I took your advice and managed to get 5 more Jags, but I'm currently growing them up a little on a separate container (about 60 gallons) because they were much smaller than the one I have.

(I asked a few of my lfs but the few that carried them said the would not special order them or get them bigger than 2")


Now mine has been growing like weeds and its at 4".

My question is, should I wait to introduce these guys when they are not bite size or should I roll the dice to see if he accepts any for now?

On one hand I feel like it might be better to wait, but then again, in not sure if that may contribute to getting him used to being alone and therefore less chance of accepting a potential breeding mate.

I say roll the dice but keep a eye on them... You should know within 72hrs if its gonna work or not
 
If they are too small at this point, they could be eaten by the larger.
You could try one as an experimental sacrificial lamb.
Just being alone a while may make it ultra territorial, but if one of the new ones is a potential mate, that might help save it.
If none are suitable as mates, it's possible nothing could save them.
 
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Ok so,

So far this is what I've done (not sure if it will help at all but)

I took out the bigger jag and put it in the 60 gallons to try to take his already established territories.

I moved the smaller jags into the main tank and completely rescaped the tank providing some potential hideouts or breeding grounds for them to claim.

Now, they seem to have settled in quickly and swim all over the tank. What I'm wondering is if maybe I should put a divider and put the bigger jag in there (separated) to get him used to them?

Or should I wait longer to have them get more size on them?


I realize there's probably going to be some casualties in this attempt but I'm trying to give them the best possible shot at it.

I'll post some pictures soon


Thanks all!
 
Bit of an update -

I decided to try introducing the bigger jag to the tank and this resulted in him inhaling 2 of the little guys before I could take him out leaving me with 3 remaining.

Obviously its either to early to be together or he/she is not accepting of anything else in that tank.

Now, of the 3 remaining small jags im not sure if perhaps 2 could be pairing up??? I'm not sure because they are so small still but it looks like 2 of them are always close to each other and seem to be guarding a corner of the tank.

20201105_113728.jpg
20201105_113737.jpg
20201105_113615.jpg

I also notice the potential third wheel sporting a few missing scales while the other 2 look completely fine.

20201105_113646.jpg
 
Juveniles shoal in numbers for safety. The 2 could be "helping each other" as they recognize the hierarchy between themselves. It looks like the 3rd is being told it is in the bottom. It doesn't mean pairing up, which doesn't happen until they are ready to breed.
 
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