Name: Anne Summerville, SC (Zone 8a) Only dead fish go with the flow!
Welcome indeed! I get those in my succulent pots as well .. does no harm but you can dig them out if you wish. They seem to pop up in potting mix that has 'forest products' like ground up or shredded hardwood bark and wood.
Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams