Stocking idea for 20 gallon tank

[40g Nano]

is there a online store where you can choose if you get a female or male clownfish?

Clowns are dimorphous. Just get two young ones and you'll get a pair. Getting a mated pair is a different story. Why would you want one is also a good question to ask.

All clowns are born male
If two are introduced, then one will become female and the other will stay male, and they will pair up

 

[Ro Bow]

All clowns are born male
If two are introduced, then one will become female and the other will stay male, and they will pair up

i want a clownfish pair, but i dont want clownfish babies, at least not yet. Is it guaranteed they will mate?

 

[40g Nano]

i want a clownfish pair, but i dont want clownfish babies, at least not yet. Is it guaranteed they will mate?

They will pair up, but not necessarily mate.

 

[TheSaltyNurse]

i want a clownfish pair, but i dont want clownfish babies, at least not yet. Is it guaranteed they will mate?

Mine have been paired up for nearly 8 years but have never mated.