Black Darter Tetra is a fascinating fish with a unique personality. Unlike many other Tetra species, this fish do not congregate in a large shoals, and instead prefer to keep to themselves. The male black darter tetra can be quite territorial & aggressive towards each other, this is why is recommended to keep them in a small group consisting 1 or 2 males and severale females. This will help to reduce the bullying and ensure a peaceful environment for all. While these fish can be a bit challenging to care for, they are well worth the effort. For best results,…