This is the first fish that will go into my 75 gallon reef tank. It's in my 20H quarantine tank, now. My question is:Why are these considered harder than regular firefish, and if anyone has had trouble with them, in the past? I've read in a couple places that these are harder than the avereage firefish, but they were kind of sketchy on the details. So far, it's survived even my inept care. It's eating, and has been bold enough to come out in the open. Any hints or special care notes would be appreciated. Thanks!