A beautiful fish. They need to be able to establish their own territory- provide them with a cave. IME they often will get along with loaches, and may be willing to share their cave, though they can be very aggressive fish. RTS have been known to live more than 12 years and reach 8-10". A 55gallon tank is the minimum recommended tank size.
I've had my RTS for 11 years now and he's my favorite - I'll always have one. He completely ignores the zebra loaches he lives with. Other than chasing random fish around occasionally, he's pretty peaceful and doesn't harm anyone, and he's constantly vacuuming my tank. Very fun and beautiful fish
[FONT="Impact"]I have mine in a tank with 3 mollies,1 featherfin catfish and one ghost shrimp. Evereone says how agressive they are but mine is fine. I think he's scared of the featherfin who seems to be the toughest fish on earth. In fact he's so nice that one of my female dalmation mollies is more agressive then him! [/FONT]XD
Have one of these (juvenile) in a 450 litre tank with Angel Fish, Blue Acaras and 2 Ancistrus.
This guy is a terrible bully who selectively picks on the Blue Acaras, chasing them round the whole tank.
Would not recommend them as their personalities are very hit or miss.
I have a new 3" RTS in a large planted tank that spends a lot of time 'grazing' up and down the leaves of the larger plants. I have not observed this behaviour in other tanks. Although descriptions I have read does not mention RTS liking algae, I wonder if this guy has a taste for it (there is no visible algae on these plants but that doesn't mean there isn't some). Any comments on this?
I got one of these with a used tank I bought. It spent a fair amount of time chasing some black skirt tetras. Never did any damage but the other barely got any rest. Cool fish, but be careful when considering tank mates. 55 gallon plus is best to allow room for them to swim when they grow older.
I have a female RTBS, she is in a 100 gallon tank with Eartheaters 3x her size...That doesn't stop her from cornering and attempting to body bash one when she gets the chance, especially at feeding time. She's extremely aggressive even in a tank 2x the minimum recommended size, but I love her! She's a very cool fish.
I absolutely love my Redtail. Have had him for about 2 years now along with tiger barbs, gouramis, and cory cats in a densely planted/wooded 29 Gallon. He literally ignores every other fish except for the tiger barbs, who he takes great pleasure in chasing all over the tank (who can blame him!) especially during feeding time. Quite comical and entertaining with plenty of personality as he is the graceful "King" of the tank. The key to success as with any aggressive fish is to provide ample hiding spots for other fish to escape his wrath. RTS is probably one of my favorite fish of all time, both salt and freshwater.
If there ever was a sociopath fish, this was it for me. Had it for 3 years and it got about 6" and then just went ape and killed EVERY other fish in the tank in one night. Usually pretty solitary but had a beautiful colored tail when it came out. Fins grow out quite large and certainly looks "sharkish" later on in life. Would probably recommend a large tank due to the aggressiveness.