Hi, I know Allens damsels are ok in a group longterm unlike most other damsels but do you need to add them all at the same time? I ask as I have a pair and would like to up the numbers by 2-3. I've had mine a few months and they were tiny when I got them, so as one is dominant and larger i'm confident I have a male and female. So basically if I can find a trio of small females will it be ok to add them?
TIA
TIA
