I've had something similar and swore I wouldn't do that to myself again. I didn't put a heater in the corals the first time I ordered to where they all came in together and although I don't think I directly lost anything because of that - I was a nervous wreck about it and it just wasn't fun. As cool as it is to get five boxes, I think I'll keep them spaced out so I don't get careless and accidentally kill anything.The most I had were 5 boxes in 1 day, corals, nudis, and cleaners,