Breeding cage recommendations

[Pecesito]

Hello ! I have a 220gallons aquarium 4 months old. I need a recommendation of breeding box they are so many options. We introduced a fish yesterday and this morning no where to be found. I think will be a good idea to have this box...

 

[Peace River]

One option to consider is the SHU from OctoAquatics (@cromag27). This product comes in various sizes and options - It isn't inexpensive, but the quality and craftsmanship are excellent. I have found mine to be very versatile.