![]() ![]() In addition, he gave numerous lectures at various aquarium symposiums and sat on the jury during discus exhibitions. In TFH magazine he had his own column „Ask Jack”, where he answered aquarium hobbyists’ questions about discus breeding. Jack has gladly shared his knowledge in books and numerous articles for aquarium press. His success in this matter was even spectacular, as up to 90% of his fish were raised this way. The fact is that it was Jack Wattley who brought the artificial raising of young discus fish to such perfection that he was able to use it on a large scale in his farms. Most sources attribute the development of this method to Jack, while others state that he learned about it from a publication by Carolla Friswold, who in turn improved the method on the basis of Harry Matson’s experiments. Finding a technique for raising fry without the participation of parents, including above all the preparation of appropriate food, was therefore a real challenge. Note that young discus fish, as soon as they start swimming actively, start feeding with the mucus from their parents’ skin. Jack Wattley was also one of the pioneers in the breeding of discus fish fry without parents. However, this is not his only contribution to the development of this species. Fish from his farms were not famous for their coloration only, but also for their high quality – they were healthy, in excellent condition and of great proportions. Jack not only obtained fish of specific coloration but also managed to assure their genetic stability. Jack Wattley in his discus farm Knowledge and passion ![]()
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