API Nitrate Test Kit Els PW 32502 Males are territorial with other

Males are territorial with other males of the same species but peaceful with unrelated tankmates

Cool-water tolerant

Lower jaw extension is electrosensory probe

It's genuinely useful in a crisis: a new tank that hasn't cycled

and sluggish growth despite good light

API Nitrate Test Kit Els PW 32502 Males are territorial with otherAPI Nitrate Test Kit The API Nitrate Test Kit measures nitrate (NO), the end product of the nitrogen cycle. Nitrate is far less toxic than ammonia or nitrite, but it accumulates steadily between water changes, and a high level signals a buildup of waste and organics poor long term water quality that stresses fish and, importantly for aquascapers, fuels nuisance algae. Tracking nitrate is really how you decide when and how much water to change. This