I do lots of gel candles. Depending on the gel supplier, most come with instructions as to temperature, etc. I started out by getting the 7 lb bucket at Michaels. It runs @ $30 there, but I would use a coupon for 40% off or when it was on sale. I had lots of orders for Christmas with various themes. Postitioning embeds that "float" can be a pain waiting, etc. I got a lot of other info on different websites about bubbles, etc. I'll post a pic of one that I did for a raffle if I can find it.