Pond Boss Forums INTRO Questions & Observations vertex disk?

Perch will train best when crowded while in the tank. To get air to the diffuser in the tank just bleed enough air(valve) from the pond system to operate the tank diffuser with as much action as you want by opening the valve to the tank.

The 3"-4" YP will not be attracted to the night light. Only YP at 0.5"-1" are attracted to light at night. They grow out of that response. I suggest you keep them crowded into one area with a net or fencing and at close to dark do the daily feed training for 4-7days then remove the crowding device and continue feeding at the same time and area. Try to not be a big physical presence when adding the food. Maybe toss the food in from a distance or up over the tank rim. Or put a cover over one part of the tank and add the food in an opening in the cover. Movement and shadows will scare them as they are quite skittish. PS - it will help with feed training success if you catch the 3"-4" YP by angling using small pieces of worm.