2 different size bichirs un the same tank

[Hotcoco fish keeping]

So, I have 4 bichirs at the moment: 13 inch endlicheri, 14 inch senegal, 5 inch albino, 3 inch ornate.
My question is
Could I put the albino and the ornate together or will there be problems in that.

 

[itiwhetu]

How big is the tank they are going in. I would have thought in a large enough system with plenty of protection, they should be fine together.

 

[Colin_T]

Need a picture of them together to see if the albino is big enough to be able to eat the smaller one.