I am sorry for this delayed reply to your gardening question. We are transitioning to a new Q&A system and your question was unfortunately lost in the transition. I have discovered it now and hope this reply is not too late to be of help.
For more fruit the trees may need more light. Citrus needs lots of sun to produce its best.
It is difficult to identify the fruit in an online question, but it doesn't sound like a lime. Perhaps it is a ponderosa lemon or some other citrus. If you can take some leaves in a ziplock to your county extension office (539-7824) on airport road in northeast Conroe the horticulturist Mr. LeRoy could maybe identify it. If you can let a fruit get large and take it in that would be better.
Thanks for the question. Please stop in again soon!
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