They are the best algae eater! The ones I had in the past devoured every single trace of Algae I had is gone.
The good thing about them is that they also eat other foods. Once settled in, you'll see them go for pellets and bloodworms and what ever you feed.
BIG WORD OF CAUTION THOUGH: KEEP YOUR TANKS COVERED AT ALL TIME, THESE GUYS WILL JUMP WHEN STARTLED OR JUST THEIR NATURE. IN THE WILD, THEY JUMP WHEN MIGRATING.
MINE ALWAYS JUMPED OUT DURING WATER CHANGES BUT LUCKILY I HAVE BEEN THERE EVERY TIME.
People also complain about them sucking the slime off of other fish such as silver dollars, rays,etc... but I have found if you keep them well fed, you won't have a problem at all.
It is told online that they will kill each other and have to be kept singly.
It depends on the individual fish. I bought 5 at 2-3'', and grew them up to 8'' together no issues other than a few chasing here and there like silverdollars. I lost 2. 1 because I left the lid open on accident and the other one jumped but I caught him with my hands and placed him back in to tank, but he still passed. The 3 that remained all did fine. I kept them all until I had to rehome them. They went together to my friend Mark who has several aquariums and these guys are in a 200 gallon tank now and are about a foot or more.
Need I say, FLAGTAILS ARE ONE OF MY FAVORITE FISH! LOVE THESE GUYS. MY ALL TIME FAV ALGAE EATER.
This is my best fish picture I've ever taken... this was them about 7 years ago.
~AquaAlex
