What are the small orange and blue seed like pellets found in older compost

Question

I have just taken up gardening this year. I use mainly pots. I have found small orange and blue seed like pellets in new compost and older compost. I don’t know if they are problem or not. Could you please enlighten me as my present knowledge of gardening is not great.

Thank you. John Lorimer.

Answer 1

It sounds like this is some oil remains of potting soil; they may be fertilizer pellets that was in the potting mix.