Cloudy fish tank water from new gravel. will it go away or harm my fish?

so i have had my tank for like 4 months, and i did all the cycling and stuff like that and water changes. Everything was going really well, the water was super clean and clear and the fish were all good. but i noticed that i needed more gravel because i cheaped out and didnt buy enough at the beginning. so i bought some more, and i thought i washed it thoroughly. but when i added the gravel, my water became very foggy. i just added some water clarifier. will this fogginess go away and will it harm my 2 cichlids?