Clowdyness from overfeeding

[Predatortank]

Im at college and I have a 30 gal tank in my bathroom. Last night a couple of drunk girls decided to put 1/3 a can of spectrum pellets into the tank. I've spent hours doing multiple partial water changes and cleaning the sand. The water is still very clowdy. Im not feeding the fish for a day or two to help get rid of the clowdyness. any other suggestions on what i can do to make sure i dont loose any fish?

 

[Captain Nemo]

Do you have a skimmer? if not GET ONE! I would try and do larger water changes instead of smaller ones. And just pray and hide the food next time you have inebriated females over. Lucky they didnt break the tank!