I'm reaching out for some advice on managing diatoms in my week-old tank. Despite having 0 nitrite and 0 ammonia with nitrate levels around ~20ppm, I'm facing a persistent diatom issue. I've been conducting 30-50% water changes using Fritz enzyme and just added a CO2 system at approximately 1 bubble per second. To combat the diatoms, I introduced a nerite snail, but after a day, there hasn't been much change—I know it's early, but I'm a bit anxious.
I've been using an all-in-one liquid fertilizer and initially had my lights on for 10 hours daily, which I've started to reduce in hopes of controlling the situation. Could the lighting be a contributing factor, or is there something else I might be missing? I'm looking for any tips or shared experiences that might help get these diatoms under control.
Thank you in advance for your insights!