Stocking A New Tank

Question
Hey! I have a new 125 gallon tank. It has:
150 pounds of sand,
well over 100 pounds of LR,
four pumps,
HOV lights,
power compact lights,
6 LED moonlights,
a protein skimmer,
UV sterilizer,
reverse osmosis water filter hooked up to a 10 gallon sump for stable salinity,
and slim siphon overflow box.

Ok! Now there's a banded eel (Myrichthys colubrinus) already in there. I was wondering if there's any problems, or concerns, or suggestions or anything with this stocklist or its members:
Black Lionfish (Pterois volitans),
Flying Gunnard (Dactylopterus volitans),
Blue Leg Hermit Crabs (Clibanarius tricolor),
Long Spine Urchin (Diadema setosum),
Sand Sifting Cucumber (holothuria sp.),
the current banded eel (Myrichthys colubrinus),
Porcupine Fish(Diodon holacanthus)[may or may not add in due to bio load by other fish],
Niger Trigger (Odonus niger)[may or may not add in due to bio load by other fish],
Upside Down Jellyfish ()
and maybe some anemones.

I'm going to do 10% water change a month depending on how the filtration well the filtration goes.

Do you see any compatibility problems (diet needs, water needs, aggression, etc)?


Answer
there may be a problem with the trigger fish and the lion fish, the trigger is a fast moving fish and it has been known for then to get stung.

the porcupine fish can also be a problem at feeding time, being faster moving than the lion fish he will eat more than his fare share. same goes for the eel really but thy can be kept busy.

may also be a problem with the Dactylopterus, they are surface hunters and i gather they will not feed from open water, also will probably have a crack at the crabs (well the porcupine deffinatly will)

anemonies are a deffinate no, they are seriously hard to keep. the oldest nenny i know of it only 2 years old (they live for many hundreds of years in the wild) they need very good lighting and good flow (they do tend to get chewed up in powerheads)

no idea about the jellyfish, only ever seen 1 in captivity. also you will need to do more water changes, more like 10% a week. they are seriously messy fish!