UPDATE:
So I haven't really done anything with the tank since we last posted about it. I had that little hermit in there, he was just fine. The toadstool did end up dying and so did the xenia frag.
So What have I done now? I have done some water changes, tested today, everything was fine. The skimmer is working properly and I figured what the heck and bought some critters. I got about 10 very very tiny hermits, mexican brown leg or something like that... I bought what was cheap.
And I got 4 of the coney looking snails. I acclimated them all for about 45 mins to an hour. Put them all in and... drum roll please..... I think the 4 snails are all dead. I don't know why.... put them in and they all moved for a bit, then began to fall off of the glass and rocks and I up-righted them, but they haven't moved since. I put some sinking pellets in for the crabs and they are walking around and eating things and exploring.
I also pulled a few very small frags (2 to 4 heads) of my radioactive dragon eye zoas from my 45 which is T5 bulbs and placed them on some frag plugs and temp acclimated them to the 24gal, with the MH lamp. They are not open at all and have been in there for about 5 hours. In fact, they seem to have closed up tighter. here is a pic of the placement in the tank. Who wants to bet if they'll open up again or not!?!?!
Also, what is the brown/bright orange algae growing on my glass, this has been there for a few days now, and it is only in very small spec, this is a pic of a rather large patch. Anybody have a guess? Is this something that is a signal to the mysterious tank of death?
I guess I will give it to tomorrow and see if the snails move or what? The crabs seem to be fine. I guess we'll see later and I will let you know!