Betta Spawn Log : BSL201806011 : HMPK Black Dragon (M) x HMPK Black Dragon (M)

Yes, another attempt of breeding project with two Black Dragons, this is similar to the failed BSL20180506 breeding project. For this project, we're using another male Betta but with the same female Betta. All these Bettas were purchased from the same breeder and were from the same spawn (siblings).

Male: HMPK Black Dragon
Age: 4+ months
Temperaments: Normal.
Size: Small (3.5cm body only)
Grade: B

Compare to its sibling in BSL20180506, this male Betta is more silverish where the other one more bluish. We don't pay much attention to this male Betta so nothing much we can describe about this one compare to the other more aggressive male Betta.

Female: HMPK Black Dragon
Age: 4+ months
Temperaments: Curious and active.
Size: Small (3.0cm body only)
Grade: B

The same female that did create a big spawn. We let it rested for a month instead of the usual two weeks before our next spawn. Other than minor bruises, the female Betta looks perfectly fine and was actively swimming around.

Log Notes
Egg was seen on the bubble nest. But we're not sure but suspected that mating did happen before. Will wait a few days to see if any fry were found swimming around.

Saw some fry swimming vertically. Immediately removed the female Betta from the spawning tank. As usual, the male Betta busy collecting and moving the fry back to the bubble nest.

Saw most of the fry started to swim freely. Again, immediately removed the male Betta to prevent similar incident in BSL20180506 to occur again. We don't want to take our chances and decided not to use leaving-father-with-fry breeding method.

When group of fishes grouped together and lay at the bottom, this was an abnormal behaviour that we have observed in our female sorority tank last time which wipe out all the fishes in the tank. Immediately, we did a 90% water changes and see the conditions have improved. After the water changes, the fishes have started to swimming freely in the tank. We're still not exactly sure what was the root cause.

For the last weeks, we noticed a few fishes have died and some fishes grouped together and lay at the bottom of the tank and some were resting at the plant. Based on the past experience, we suspected there must be an outbreak some how but not sure the root cause. We immediately removed all the fishes to a temporary bowl with Methylene Blue medication to remove fungus or parasite; or ammonia or nitrite poisoning. Note that we did a 90% water change yesterday but the condition was improving for a while and reverted back to old symptoms.

We still monitoring the fishes in the small jar but there have been no causalities. Daily water changes is a must.

Certain fry have noticeable silver colouring on their body. Growth have been quite slow and we have quite a few causalities due to careless water changes. Good news was this spawn was not on medication anymore.

Moved the spawn to a bigger tank together with spawn from BSL201806024.

Based on the Betta fish growth table, the growth rate of this spawn did not meet the expected growth rate. The largest fish from the spawn is roughly 2cm or even smaller after 6 months. To make matter worse, most are having swimming and breathing difficulty. We suspected due to frequent water changes which induces unnecessary stress, infrequent feeding, lack of good protein food source, and competition with other spawn in BSL201806024.

1/ Daily water changes is important for the fry growth and prevent any infections.

2/ Make sure the pair of Betta fish are in good health before breeding. Otherwise, the subsequent generation will inherit all the genetic problems of the previous generation.

3/ Instead of using Methylene Blue, we should have use Indian Almond leaves and water plants to manage the water quality.

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