I'm not very familiar with predator fish tanks but that seems like a lot of livestock for a 4 foot tank. I know you plan to upgrade as they grow, but life gets in the way sometimes and you may not be able to upgrade when you need to.
Predator fish are messy, they eat a lot and leave a lot of waste food in the water. They all need a lot of water volume and good filtration to be successful.
Predator fish are messy, they eat a lot and leave a lot of waste food in the water. They all need a lot of water volume and good filtration to be successful.