Thread: Harlequin Rasbora
10-25-2012, 08:38 PM #10Member Swordtails
- Join Date
- Sep 2012
- Philadelphia Suburbs
Assuming you have adequate filtration, if it were me I would add 8 more Harleys, then 4 more peppered cories. The Harleys add so little to the bioload, you could easily add them all at once. Once you up the shoal, the aggression will calm down. I have 16 harleys in my tank and they're quite peaceful.