On the last stage of diatom algae. The green algae are starting to come up. so i'm on my way there. ammo 0, nitrite 0, nitrate 10. do 10% pwc weekly. almost two months old. so far i have 2 crieth snails, 2 nerite snails, 2 nassarius snails n 3 peppermint shrimp to bring down apistia outbreak.