Hi, first time posting here.

Roughly six months ago, I purchased a calamondin orange. It's been doing great, bloomed heavily in the spring, and now has 100+ fruit developing on its branches. I'm in the Toronto, Canada area so the tree will come inside in the winter. I've been using Jobe's container citrus fertilizer for the last 3 months which I think has contributed to the new growth and development of the tree. 5 months ago, I repotted into a terra cotta pot and used ProMix Cactus and Succulent mix which contains perlite. Unfortunately, the ProMix soil is extremely bad for drainage (bag said 40% organic content) so last night I repotted the tree into the terra cotta same pot but I used a mix of a different brand of cactus and succulent mix (20% organic content) and added in additional perlite. I kept the old soil around the root ball completely intact and placed the new soil on the bottom of the pot and around the tree. Drainage seems to be much better now. I do have a couple of questions though that I'm hoping the community here can help me answer.

1. The new growth that is probably 4-5 months old now is still light green and not glossy while the rest of the tree is a deeper, glossy green. Is this normal or is this an indication of some nutrient/trace element deficiency? If so, how would this be resolved?

2. I'm scared for the winter... should I use a grow light or keep it by a bright Southwest window and let it do its thing?

3. Would a liquid slow-release fertilizer be better than the Jobes container citrus spikes?

4. Getting a little tired of moving the plant around the house to get sun. My options are to leave on a balcony facing Northeast to get 4-5 hours of direct morning sun or keep indoors year-round in a very bright Southwest facing window that gets 7 hours of direct sun. Which would be most beneficial?

5. Since repotting, the plant has been thoroughly watered and is sitting in the direct sun. Is that ok or should it be kept in a shaded area for awhile?

Thanks in advance! Picture of the tree attached.