Posted: Thu Jan 11, 2007 2:20 am
I think that's overfeeding them. Feeding your turtles once a day is plenty, twice a day may be pushing it a little, anymore is overfeeding. Many of the turtle treats such as turtle bites should be offered rarely, maybe once a week or two, because they offer low nutrition (even fattening), just a lot of filler and flavour. Live food should also be offered sparingly, once every 3 weeks and up is appropriate. The instructions on the packaging of many turtle foods often say something like "Feed as much as turtle will consume in 2-3 minutes", and/or "Feed once in morning, once in afternoon", don't do it. They are just trying to con you into using up your turtle food quicker so you can go out and buy more, more money into their pockets.
When giving greens, offer them as often as possible, they give good nutrition, and improve the health of your turtle (as with humans too), stop if they vomit the greens up, or in the case of runny waste/diarrhea. Fruits are treated as treats too, offer them sparingly, especially the ones high in sugar (which is most of them). The usual diet is vegetables and pellets of a good brand (some brands are somewhat unhealthy or offer little nutritional value).
Adults turtles can and should eat only once every other day, I feed mine every 2-3 days (especially since they're all so bulky and fat already). Your turtles should perhaps follow being fed once every other day as well, thjey aren't fully mature, but they sound pretty chubby.
The general rule for feeding is as much as would fit in your turtle's head if it were hollow, excluding the neck. It may seem little, and despite your turtles begging you for more (which is common), they will live healthier in the long run. Also turtles in the wild can store energy and live for a long time without food, they only eat when they catch prey or find some random food, so captive turtles are being fed plenty.
Hey hey hey.