We do water changes weekly and the ammonia drops back to 0.5% and no I haven't left the water for 24hours before testing, I'll look into the Seachem Prime.
There is ammonia in the tap water so it was rested just with that and water was dechlorinated first. The test kit is an API ammonia test kit, the danios have been in the tank about 3 weeks now with minimal feeding but still the ammonia stays high.
Hi, I have recently set up a new tank and followed all the instructions to cycle the tank leaving it for a few weeks to get the bacteria in the filter before we added any fish, we then did a 25% change and added 4 danios and some plants, ammonia levels are constant at 0.5% and spiking to 1-2%...