The NO2 (Nitrite) is zero ppm and that NO3 (Nitrate) is zero to 20 ppm which is a nominal reading of zero too. Guppies usually don’t have any problems with Nitrate up to 30ppm anyway. So it’s not that.
The water treatment is ‘Natural Rapport’ Also in 1 water conditioner. Claims it lasts 2 weeks...
Help! I’ve been keeping fish for years. Had a break from the hobby for a few years when we moved home. Set up a new aquarium details below. It’s cycled for 3 weeks and then added a group of male and female guppies from local store. All was well for about three days and the we began observing the...