brachish water setup

Been cycling a new 25gal for my figure 8 puffer for two months now. Salinity is at 1.008 (sea salt) and added 2ppm Ammonia when started cycling process. Using API freshwater test kit and been using it just fine with no issues for my freshwater shrimp tank and current brackish 15gal for my...

Hi, I have a 10 gallon tank with 2 Dragon Gobies ( roughly 6 inches each) 4 Plecos, and a few guppies and mollies. I will be upgrading the tank soon as the dragons grow super fast, BUT my question is this: I was cleaning my tank today and noticed that in the other tank i put my fish into, my...