This is a joke right lol, because I am laughing. I am sorry but this is the most extreme I've seen anyone go. How can you say you are doing an "experiment" on living things??? I DO NOT want to get the tree huggers going but seriously a freaking 10 gallon tank w/ a Niger trigger and a lion fish which is a full size not a dwarf...seriously I would be embarassed to even post this because honestly everyone about have been extremely passive on you and more or less you are asking to get flamed!!
First of all, SUCCESS with a saltwater tank is NOT measured in months, it is measure in a years.
Second, those fish will not work every in a 10 gallon tank. The lion will reach a minium 12" b/c it is not a dwarf lion, even those get up around 5" which is still big for that size tank. The niger trigger will get up around 12", once again too big for that size tank. You say you will get rid of them when they get bigger or whatever. Well my question to you is why would you even purchase them if you cannot keep them for more then a couple months?? Why do you waste your money just to have some "cool fish" when you cannot properly care for them??
Third, a 10 gallon tank cannot support more then 2-3 fish that get a MAXIUM of 2-3". There are alot of small fish that you can keep sucessfully in that size tank but your choices will not work.
Fourth, kiss your shrimp good buy. It might not happen right away but one of the two will definately eat your shrimp, I don't care how long they've been fine with him for.