Update on Big Red and Mohawk Jr.

The GH is 125 ppm. Temperature 78F. Mohawk jr. was raised as a fry, born December 24, 2024. The only other fishes in the tank are 10 Glowlight tetras which were added in June.
9 month seems short but in truth my frys take longer than 9 month to reach adult size so i'm wondering if it is an issue with diet. 78. The stomach looked a little odd in the picture but it is just an angle thingy of the photo. In truth i have no clue from the information in that nothing you mentioned is a solid red flag but it is still odd it grew so fast. Do you feed it blood worms or similar they are known to cause issues.
 
9 month seems short but in truth my frys take longer than 9 month to reach adult size so i'm wondering if it is an issue with diet. 78. The stomach looked a little odd in the picture but it is just an angle thingy of the photo. In truth i have no clue from the information in that nothing you mentioned is a solid red flag but it is still odd it grew so fast. Do you feed it blood worms or similar they are known to cause issues.
The a. cacatuoides get frozen blood worms about once per week.
 
The a. cacatuoides get frozen blood worms about once per week.
I think I would remove bloodworm from the diet as well as grub worm. Growing them fast is good if you are selling them but otherwise whatever. It is hard to indicate why a fish dies even if there is imperical evidence in the aquarium around it - you could always have a vet disect it if you preserve the specimen though in truth I would look for a pair of nice rio wc cockatoo. They won't be as flashy but they are actually fairly nice looking depending on catch location and should live 4 or so years with proper care.
 
Big red and his mate spawn July 3 and September 19. Here are two of the twelve juveniles from the July 3 spawn.

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Big Red and Mohawk Man’s daughter spawn and have about 17 juveniles first noticed as fry on July 3. Here are pictures of Big Red and one of his sons who is just beginning to color up.
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Does anyone want to venture a cause of death? Mohawk jr. looked perfectly fine on Thursday evidenced by his picture but dead on Sunday. I’m perplexed.
First time I have looked at this thread. Your red fin male has a curve in his back (the black line along his body should be straight but has a slight curve in it). This is just a genetic disorder and he produces good young so don't worry about that. I see 2 issues with the yellow fin Apistogramma cacatuoides.

Was his face always white like it is in the picture?
Was he eating well before he died?
What did his poop look like?

1) This first image is from post 1 and he looks sunken in behind the head, muscle wasting perhaps (microsporidian infection).


2) This is when he died and he has a sunken belly, possibly from intestinal worms, an internal protozoan infection or muscle wasting disease like a microsporidian infection, most likely worms.

He might of died from intestinal worms or a microsporidian infection, or both.
 
Big Red Sr. and Mrs. Orange, daughter of Mohawk Man spawn on September 19 in a 20 gallon long. This morning I count about 50 small juveniles. These guys are gulping down BBS and daphnia. I’m pleased with their progress.
Big Red Sr. Pic
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In another 20 gallon long I am trying a different breeding strategy. The male cockatoo is Big Red Sr.’s son, Big Red jr. I bought 3 female cockatoo to give Big Red jr. a harem. I didn’t want Big Red jr. breeding with his sisters. The tank temperature is at 79F to encourage the birth of males. So far there have not been any murders.
Big Red jr. pic
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