[plsm]

HI

I just bought a male kribensis today for my female kribensis in my 15 gallon tank (no other fish). The male is much bigger than the female (close to double her size). When he got into the tank, they started circling each other. Now the female is chasing the male and nipping his fins. Could someone help me?

Also the female is only 4 cm, she has round pelvic fins and some female traits. Is she 100% female, or could she be a male. (is she too young to tell?)

ps. the male at the store already has a mate

 

[Chunkanese]

You can sex them by their fins and body shape. Males have a more torpedo shape and longer fins. Females are more plump with rounded fins. Change the territories up to help the new comer. You can also add a few tetras as dither fish.

 

[plsm]

Thanks!

I've moved the decorations around, did a full water change and put the fish back into the tank. They're swimming around together now! Thanks for the advice, it really worked!