Hi all -
Here's a riddle. Two tanks, not densely populated:
10 gallon - 6 Florida Flag Fish, mostly peaceful, but occasionally aggressive. 4 males, 1.5-1.75", 2 females, 1-1.5". 76F, ph6.8
5.5 gallon - 2 Zebra Danios, <1", 1 Opaline Gourami, 2". 75F, pH6.8
What, if anything, would you add to...