This is a male red and blue short-tail. It came quite small but has grown quite a bit now. This fella almost gave me a heart attack once. I came down in the morning and I noticed the bottle empty when I wanted to feed him. Searching high and low, I heard a flapping sound nearby and found him lying on the floor! He had leapt out from his bottle! But he's thriving well now!
This is the other short tail that came at the same time. This and the one above was given to me by J. This guy's the biggest one now and my bro swears he's fed with steroids! I bought a female once and tried to mate him with the female but he killed her! :( He's one of the biggest fighting fish I've seen and looks almost like an arowana sometimes. He posed very well though each time I wanted to take his picture!
I bought this, thinking it was a female so I could try mating the male fish. To my utmost surprise, it developed into a male long tail! I got suspicious when it started blowing bubbles as that's a pure male trait in making its bubble nests. I think I was deceived by it's small size when I bought it! It's the greediest of the fish and would actually make little jumps when I am about to feed it!
This is a red male long tail bought at the same time as the one above. It's the smallest in size and doesn't seem to grow much for all that it eats! Long tails are pretty and generally smaller than short tails.