10 gallon, planted (1 plastic plant also), cycled (0ammonia, 0nitrite, 5nitrate) aquarium. Temp is at 74 Fahrenheit with heater. Three boy platies are the only inhabitants. One is significantly bigger than the others (and the only non-hifin, if that matters).
Two fish went in on Saturday evening, one this morning. The biggest platy is NOT a good roommate.
I’m seeing unprovoked chasing and nipping almost nonstop. The big guy just switches between two victims.
I love these little guys already, and I’m worried that stress will make it much harder for the two smaller fish to adjust to their new tank, much less thrive. I have an empty 5 gallon spare hospital tank, but another tank is a LAST resort. Any and all advice appreciated!