- Ability to put fish in easily.
- Ability to remove fish easily.
- Adequate ventilation (or water flow through).
- Durability (If you are planning on using it frequently and for a long time. It's amazing that plastic will become brittle after a period of time when exposed to saltwater and sun.)
If you are planning on snorkeling and cruising around on the surface, it works great because it has two float cylinders on each side. Attach it with a line to yourself and tow it behind you when swimming. With the holes in the bucket, when towed it will allow clean water to flow through it and keep the water fresh (no ammonia build up). If you are remaining still in one place for a few a while make sure you drain off some of the water and then submerge it to refill the bucket with clean water about every 5 minutes to flush out the bucket and keep the water clean from ammonia build up.
