Nice o man
I always thought the whiteness was new growth
A skinned crushed pea or two will keep the digestive system moving, it acts as a laxative, although O's generally don't have an issue in that area. Omega One super veggie pellets are good to include in the diet too or as an alternative to peas. Hakari bio-gold pluse is OK too but NLS is better as a staple IMO with higher inclusion rate of garlic. Your fish looks great.