How long have you been feeding the pellets? If you've been feeding it all along, have you increased the frequency.

It could also be the increase in seasonal temperatures.

>>Thanks for the input. It seems I have nothing to worry about.
>>
>>EJ - the tort has received the same basic diet as always - weeds and greens and a touch of pellets - but is probably getting a little less direct calcium supplementation now than before.
>>
>>When he was staying indoors I regularly dusted the food. Now that he's outside, I provide cuttlebone for gnawing and rarely dust the food.
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Ed @ Tortoise Keepers
Trying to keep the fun in Chelonian care