Hi,my tank is in its 4th week,3 with the inhabitants being 10 black neons.They seem very at home,I understand that amonia levels will rise for a while ,I have been testing every few days and doing water changes and filter cleanouts.It has stayed at 1.0 on the colour chart for 2 weeks,is this normal.Ph levels have been marginally above 7 for most of the time.I was also encouraged to use a little iron enriched plant food.How would this have affected any readings.Thanks Dave. :bounce: