Think we’ve passed the “established” benchmark. Last July/August I was in the hospital for 5 weeks. Tank got minimal care and did fine except 15-20 nitrates. Struggled with high nutrients for a while after that, now they’re low.You can dose them or increase feeding. I would suggest dosing so you can control the amount until your tank is “established”. Established is a relative term. I would say your tank is established when you can leave it for a week or so and the parameters are still stable.