It's definitely dependent upon the species in question, IMHO. Big-mouthed predators? Very infrequent feedings; my Jelly Cat is far from adult, maybe about 15 inches now, but he now gets a generous meal once a week, give or take. When he's bigger, that may drop to twice a month.
Fry that I am growing up will get several meals daily, and might even be kept a tad warmer than I would keep them as adults to speed up their metabolism and growth a bit.
My breeding colonies of livebearers get fed frequently and heavily as well; I don't remove the fry, just keep them all together and rely upon thick growths of things like Guppy Grass, Hornwort, Java Moss, etc. to provide the fry with security, combined with lots of food to keep the adults in a less-predatory mindset.
A Red Wolffish that I got very small, about 2 inches or a bit more, was fed frequently at first. Now he's around 5 inches, and his feedings are down to about every other day; he'll be on a couple a week pretty soon, but he is not equipped to eat huge meals at once (like the Jelly is...) so he will likely stay at that level. A Musk Turtle that occupies a place of honour in the den is now close to adult size, and he gets fed twice a week when I am doing it...but more like twice a day when my wife is in charge. I am seriously thinking about putting a locked cover on that tank...
Regardless of species or schedule...I never feed fish (or any animal!) to the point where they are full and wouldn't eat more if they could. Lean and mean...
Funny, but when I had a Giant Gourami, he was kind of the exception to the rule. He would chow down on the "regular" food when others were being fed, but he would also get a good handful or so of vegetable food almost every day...dandelion greens/flowers, duckweed, spinach, whatever I had on hand. He was one of the few largely-vegetarian fish I had, and he was the boss of the fishroom, so I did sort of kiss his...anal fin...in some ways, and feeding was one of them.
Fry that I am growing up will get several meals daily, and might even be kept a tad warmer than I would keep them as adults to speed up their metabolism and growth a bit.
My breeding colonies of livebearers get fed frequently and heavily as well; I don't remove the fry, just keep them all together and rely upon thick growths of things like Guppy Grass, Hornwort, Java Moss, etc. to provide the fry with security, combined with lots of food to keep the adults in a less-predatory mindset.
A Red Wolffish that I got very small, about 2 inches or a bit more, was fed frequently at first. Now he's around 5 inches, and his feedings are down to about every other day; he'll be on a couple a week pretty soon, but he is not equipped to eat huge meals at once (like the Jelly is...) so he will likely stay at that level. A Musk Turtle that occupies a place of honour in the den is now close to adult size, and he gets fed twice a week when I am doing it...but more like twice a day when my wife is in charge. I am seriously thinking about putting a locked cover on that tank...
Regardless of species or schedule...I never feed fish (or any animal!) to the point where they are full and wouldn't eat more if they could. Lean and mean...
Funny, but when I had a Giant Gourami, he was kind of the exception to the rule. He would chow down on the "regular" food when others were being fed, but he would also get a good handful or so of vegetable food almost every day...dandelion greens/flowers, duckweed, spinach, whatever I had on hand. He was one of the few largely-vegetarian fish I had, and he was the boss of the fishroom, so I did sort of kiss his...anal fin...in some ways, and feeding was one of them.
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