Hello Im currently trying to keep my nitrate levels low my setup is 25 Gallons with 4 guppies and ~12 neocardinas shrimp and 12 mystery snails Water parameters are GH 7-8, KH 1-2, TDS ~280 I use RO water w/ remineralization. I know the snails are producing alot of waste and keeping the nitrate levels at around 20ppm I was wondering if It was ok to do frequent water changes and gravel vacuuming to maintain nitrate levels. My concern is it'll stress out the shrimp. Need suggestions moving forward on what I should do whether it be remove some snails or increase the number of water changes/vacuuming. I also have alot of plants in the aquarium and floaters to try and keep the nitrates low, but its still ~20ppm.