peppermint bn breeding size

hi guys i need a bit of advise. i just got a second hand 3ft tank with 4 peppermint bns they 3 to 5 inches. the guy i got tank from said they were bout 13 months old. are they old enough to breed, if not how old do they have to be. should i sell and buy a breeding pair or is it better to keep them and wait?
thanx

not yet, few more months, somehwere between 18-24 months. seems to vary a bit with the peppermionts.

The thing I would be concerned with is the bloodlines. if they are all siblings then breeding them may cause issues. I would try and swap some of the breeders around to get some fresh blood.

thanks doug, is it worth selling them and buying a breeding pair or keep them and wait? seller said diffrent blood lines.

hi there, if it was me i would wait. you can always sell later and change breeders which is what i have done. do you know gender? and keep in mind some males will dominate and grow beautiful bristles and another male in the same tank may not grow full bristles and may mature at a later time. i first got four 3cm-5cm pepps all from different blood lines to find all 4 were females once fully grown so then i sold to get a male. i also have them in a 3 foot tank and have been unsuccessful so far with breeding, but i'm moving them into a 4 foot tank in a week as i have been told of more successful spawns in 4 foot tanks. i have two girls that are 18months - 2 years old, one female 3 years old, and a big male at 4 years. there's lots of info on here for peppermints and a lot of questions asked by me! lol
good luck, hope you get them breeding! if you do please share your secrets!

if they are all different blood lines then i would def keep them. no point selling those 4 and prob still having to spend money to buy a trio. just stick with it

Great I'll hang on to them. Thanks yes I'll have to do alot more
Research. First time keeping Bristlenose. The biggest one is always in his
Cave the others hide most of the day.