[LF] - NYC & Westchester, NY - Congo Tetras

I am looking to add a small school of Congo Tetras to my 40 gallon tank. Over the years, some of my other tetras have gotten old and passed away, and I have always dreamed of getting Congo Tetras. From what I have seen, they are so beautiful. If you have any advice for where I should get them, or just advice on Congo Tetras in general, please let me know. Thank you!