Blow off the cyano mats. Ignore the n/p. If it loooks dirty it probably is. Don’t starve them. Don’t overfeed. I like diverse foods. Aminos and vitamin c break down easily. Anything that breaks down easily is easy bacteria food. Pods would be part of the breakdown and they digest tiny foods. Other organisms absorb nutrients. I’ve seen many high nutrient tanks with no algae. (Sometimes mine lol) That’s about cuc and the toothbrush IMO. Ime As the thread states it’s not n p balance , it’s limitation. Some critters love higher levels of one or the other and will bloom under those conditions and also create micro cilmates to encourage more colonization. (Thus disturbing the mats, cleaning) Balance is the balance of organisms to stop one organism dominating the tank and not IMO an N P ratio. To keep a healthy Reef you need enough of each to feed all of them. I opt for higher numbers , and oddly , don’t have cyano often at all.