so herman grew up...

and ate 4 of my tetras, including my favourite One-Eyed Jack. 

So we put him in isolation, in his own little tank for now, until we can figure what to do with him. Poor sod, he does look quite miserable but there's no way i'm risking my tetras by putting him back in his home. Although we knew that one day he'll start eating the tetras, we thought by feeding him enough bloodworms, he wouldn't turn to the tetras. Nature vs nuture. I guess natural instincts prove too strong for him. He stays away for now...

Now... let's see what else should I get for my tank...