Thoughts on Breeding Mosquitofish
I know, they're not cute, and even heard a few people refer to them as the "ill-tempered guppy-like things." However, I have found the species Gambusia holbrooki rather fascinating. I will make it known that yes, I do have some breeding at this very moment in the tank indiscriminately - but the sort of breeding I'm interested in would be for particular traits.
In a few weeks I will purchase a larger tank (to move the other fish I have into) and will have a 10 gal tank in which to keep the Gambasia in. I was thinking about setting up a divider, with males on one side and females on the other, and breeding boxes. I have a 2 gal tank in which I would keep the resultant fry.
The temperature would be kept within optimal range for breeding (about 80 to 85*F), although they can tolerate higher and lower temperatures.
Eastern Mosquitofish (Gambusia holbrooki)
They seem to breed readily regardless of the substrate as they are live-bearers. I was thinking of using sand in the smaller 2 gal tank for the fry - in order to avoid mishaps in which a baby fish becomes wedged under rocks (rare, but happens). Plants would be used for both adults and fry.
I have a regular "Hang On the Back" filter, in which it siphons up the water then pushes it through two filters and then pours out the front like a tiny waterfall. Perhaps not the most efficient system out there, but for Gambusia, it should be sufficient. The filter is turned off at night.
As for the fry, the tank wouldn't have a filter. Rather frequent water changes would suffice. They are a species of fish that thrives in stagnant water, so I would imagine the demands in regard to their care would be minimal.
Lighting and when used or not used:
Aquarium light bulbs recommended for aquarium plants will be used. The lights are turned on about 8 am and turned off about 8 pm.
Food used for conditioning:
Nothing exceptional, simply tropical flake food, algae, and edible plants.
Food used for fry and at what stages which food was used:
This seems a tad more tricky. I was thinking of using algae, edible plants, and perhaps powered flake food. Might even cultivate some daphnia and similar critters to suit their palate.
Water change frequency and what type of water:
I change 25% of the water every week with a 10 gal tank, and then an entire water change once a month.
With a 2 gal tank, I would change 25% of the water every couple of days.
The water would be from the tap combined with AquaSafe Water Conditioner with BioExtract. The pH and water hardness resembles that found in the local lakes and streams from which these fish have been collected from. Although, once again, this species can tolerate variation.
What would I do with the resultant offspring?
What are some traits I hope to breed for?
This has yet to be fully speculated about. However, I have noticed some of the fish are darker than others while others are of a lighter variation - regardless of being male or female. I've noticed some males are more aggressive than others, whereas others are simply more curious and confident. There will probably be overall size differences from the established norm for males and females.
So far, I could try to enhance such traits as:
Any suggestions, advice, and words of wisdom would be greatly appreciated.
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