Will these fish all go together in my 75 gallon freshwater tank????

[biigpapasmurf]

A black spotted spiny eel, alenquer discus, gold pigeon blood discus, flachen discus, checkerboard discus, starry night pleco,and a hammers cobalt blue lobster. I love all these fish and I really want to put them all into a tank together! But I want to make sure its okay. If so what kind of gravel should I buy and how should I decorate the whole tank??? Also what can I feed them that they will all LOVE?
Thank you so much!
*SUPERSMIL

 

[achase]

Check out AqAdvisor - Intelligent Freshwater Tropical Fish Aquarium Stocking Calculator and Aquarium Tank/Filter Advisor. It's a good place to start until someone else answers!