will these guys STAY compatible

I currently have a volitan ( 4"), SF eel (9"), maroon clown ( 2" and mean as heck), cowfish (2"), foxface ( 3"), kole tang ( 3"), watchman (4") and a scooter blenny (2"). Also have fighting conchs, 3 urchins and a hermit. They have all been together in the tank for 6 months with no sign of aggression towards each other ( except the clown, he is the meanest fish I have ever saw). I have heard conflicting info on if these guys will eat each other eventually. One says no as they have been together for awhile now and one says the lion and eel are going to eat the clown and the blenny when they gets older. I am setting up a 150g later this year and transferring these guys into it. I have a 75g reef but I am uneasy about putting the blenny in there as I have a mandarin that is fat and happy. Watchman is also iffy as I have another sandsifting goby doing enough sand coverage on my LR and corals. I have 2 skunk clowns in there also so it's no to the clown. I'm just curious if any one else has kept a mix like this with no problem or if I am going to run into trouble later. Thanks !

 

The lion and eel will eventually eat everybody if the cow doesnt get stressed and poison everybody.

 

maroon clowns are notorious for being agressive.

 

Well that's another under the Will Eat column. The thing is, can I possibly move the blenny into my reef or will there be too much competition for pods? Both of them eat brine and mysis but I know they also HAVE to have pods for continued health. The maroon will have to fend for himself. My LFS guy has 2 huge volitans and a shark in a 360g along with a maroon and assorted other guys. They have been together for 4 or 5 years so that's why I asked about him staying.