Originally Posted by angelf
I at least want something to host my anemone even if it is one and then I'll get like a damsel or something nano...
Dude, I don't know how many ways to say this (along with everyone else here) - you are setting yourself up for failure. Your tank is too small for what it is you're looking to do.
Here's some chemistry basics for you:
A large fish pooing in a small tank will pollute a larger percentage of water then a small fish pooing in a large tank. This means it takes fewer fish in a small tank to pollute the water then it does in a large tank. This is pretty obvious, I would think.
What's NOT always obvious is that along with the fish poo, nitrites and nitrates can be thrown horribly out of whack in a small tank with only a small variance in water quality because, well...there's just not that much water to dilute the problem. I have a 77 gallon tank. I've had fish die in the tank that I've never found and I don't even see a blip in the nitrite radar because, quite simply, its a small corpse trying to pollute a large-ish amount of water (in addition to having a butt-ton of live rock in there to filter out the nitrites/nitrates/other assorted crud)
In a 10 gallon tank, on the other hand, something like a dead fish is enough to throw your nitrite levels off the charts.
In addition, if you really want to see decimation, keep that anemone in there. Unless you have some intense lighting on that 10 gallon tank, it's going to die as anemones rely heavily on light to be sustained. And if it dies...dude...you don't want to know what that will do to anything and everything else living in that tank.
If you want to succeed, listen to what people are saying here. I've been kepeing saltwater tanks for awhile and am just now getting ready to dive into the world of corals, but I've kept fish tanks long enough to know that what everyone here is saying is right.
The same principles, incidentally, apply to ANY fish tank, beit fresh or salt water.