What kind of soil should I use when transplanting from pot to larger pot?
Growing Avacodos Indoor
Certified GKH Gardening Expert
They do tend to like potting soil amended with compost, and dolomitic lime in container. It is very important to give them as much light as possible, which will mean supplementing with 200 watts or more of horticultural grade lighting indoors, and through the winter until it can go outside to get proper lighting.
This article will give you more information on this: https://www.gardeningknowhow.com/edible/fruits/avocado/indoor-avocado-plant-care.htm