API Nitrate Test Kit Els PW 32502 Betta splendens — the Siamese

Betta splendens — the Siamese Fighting Fish — is native to the rice paddies

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

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

Cool-water tolerant

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API Nitrate Test Kit Els PW 32502 Betta splendens — the SiameseAPI 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