Thanks for everyone's response :) Hi meyermike_1micha, I know I overwatered from having the pot sitting on the floor with a plastic water catch thing. It sat in water for a bit before I had someone help me get it onto the rolling crate that it now sits on. I did notice one really small bug by the underside of the pot when I was flushing the soil. But other than that, nothing else. As far as freezing, I don't think so. I brought the tree into the house early October, but there were a couple of nights the temp. was around 45-50 degrees, so maybe that?? I had been watering it once a week, with 1 pitcher of water until the time that I watered with an additional pitcher (which I thought it looked like it needed) and then discovered the extra water in the base pan the next day. I am an inexperienced gardner and have no idea what to do other than getting some additional lighting (grow lights??) Should I flush the soil again, just in case my cat had pee'd in the pot? Should I give it some kind of food/fertilizer?

Uh oh. Pictures are missing. Please try again.

Hi lovemygarden2010, Welcome to Garden Web. You might try asking at the link below, or one of the other forums....California, Fruit and Orchards, etc. All GW Forums Sue Here is a link that might be useful: Tropical Fruits.

It sounds like a trace element problem. I loaned my book on citrus trees so I can't look it up. It could be either a nitrogen or iron deficiency. Citrus trees are heavy feeders and (from memory)generally need fertilising end of Spring, late Summer and early winter. Check with your local nursery. Doug.