Hey guys,
Tank has been cycling for about 3 weeks now. Ammonia has been at a steady 0 for more then a week now but Nitrites are still at 2ppm and Nitrates around 40ppm but during the night a lot of brown spots have started appearing everywhere on the rocks and the sand (diatoms?) see picture.
Should I do a small waterchange to lower the nitrates and slow down this bloom or let it run its course
Tank has been cycling for about 3 weeks now. Ammonia has been at a steady 0 for more then a week now but Nitrites are still at 2ppm and Nitrates around 40ppm but during the night a lot of brown spots have started appearing everywhere on the rocks and the sand (diatoms?) see picture.
Should I do a small waterchange to lower the nitrates and slow down this bloom or let it run its course