high nitrates

My tank has been cycled all has been perfect until last test I test weekly nitrates ammonia and pH on occasion. pH always reads high tap water high I bought bottled water for Betta who recently passed from old age but use tap for guppy tank 10 gallon tank planted plus fake plants for baby...

Hey everyone...Im perplexed and need some help. I have what I feel is more than adequate filtration, flow etc on a yr old established tank and Im still reading what I consider high nitrates for such small stock & large water column. I havent tested the water directly after a change (I will...

The Ultimate Guide To Water Changes | Water change myths | How Much Water Should I Change In My Aquarium? | Managing Nitrates - Dealing with High Nitrates | How often should I change my aquarium water? Why are water changes important? What are the long term effects of high nitrate...