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Post by peaRooster on Apr 19, 2011 18:36:29 GMT -5
What has been you most successful strategies in growing out fish till their fullest size. My fish have always been slow to grow, and never achieve the size of the purchased parent stock. My water is identical to breeders that have spawns that are twice the size of the spawns I had at the same time. Or twice the size of the spawns I had with a two to three month head start.  |
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Post by shellies215 on Apr 22, 2011 14:58:06 GMT -5
There are a lot of factors that can contribute to fry growth rates, Saying your water is "the same as others" isn't really enough information. The fry can be affected by Temp., pH, kh, nitrate levels, frequency and percentage of water changes, frequency, amount, and type of food.
What species of fish are you keeping?
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Post by africanchinchillas on Aug 9, 2011 4:18:01 GMT -5
I've noticed large water volume and frequent nutritious feedings tends to be the key. When you read about repeatedly successful breeders like Mike Hellweg and Ted Judy or ORA's marine breeding facilities or the aquaculture industry these aren't just a couple of tanks.
Even when it is a series of several tanks on a breeding rack they are sharing water through a plumbing network. This dilutes the waste and stabilizes temperature and pH throughout the system. The less stress a fish has to deal with the more energy it has to expend on things like breeding or building that bubblenest in the Poconos they’ve always dreamed of.
As for the feeding, it is well documented by the previous examples I mentioned that it takes a lot of fresh, nutritious and often live foods to condition certain species to spawn. You have also heard about how much better it is to feed baby brine shrimp to many species not just because of the smaller size for fry but because of the nutritious yolk sac they have at that stage. The carotenoids in the chitonous exoskeleton of daphnia and mysid shrimp have been explained to us by two of our guest speakers as well.
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Post by fishguy66 on Jun 10, 2014 10:49:39 GMT -5
I noticed this thread is a few years old, but.....
Water changes. LOTS of them. If you think you are doing enough, think again & do another one.
Fish do grow @ different rates, but just FYI......Fish secrete a growth inhibiting hormone in their urine....the more you dilute this, the bigger they grow. As stated, feed a nutritious diet...if you keep large SA/CA cichlids, NEVER feed live aquatic food, in particular feeder fish. Feed tilapia fillets.....Try earthworms, mealworms (giant if you can get them), crickets....& feed a high quality pellet like Omega One.
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