API Freshwater Ammonia Test Kit Senior Dog biodegradable cardboard means this is

biodegradable cardboard means this is a piece of cat furniture you can feel good about from start to finish

particularly in new aquariums going through their nitrogen cycle

fresher breath

essential for thyroid function and metabolism regulation

and stress-free outings

API Freshwater Ammonia Test Kit Senior Dog biodegradable cardboard means this isAPI Freshwater & Saltwater Ammonia Test Kit Aquarium Water Testing Ammonia is, without question, the number one killer of freshwater fish and the worst part is, you can't see it coming. Fish constantly release ammonia through their gills, urine, and waste, and it builds up further from uneaten food and decaying organic matter. Small amounts stress fish. Large amounts kill them. The only way to know what's actually happening in your water is to test it