New tank idea...opinions?

[Son Of Skyline]

Now that the 120gal sps is going, I've decided to keep my rose and keep a "rose only" nano. Here's my idea...

10 gal tank
175w 10k MH lighting
Roughly 5lbs LR
2" aragonite sand
No sump
No skimmer
1 rbta
xenia
2 small clarkiis or ocellaris (I have 2 clarkiis and 1 ocellaris currently)
5-6 astrea snails
Aquaclear 150 for circulation

Does this simple setup sound feasible for the rbta? This is going to be a first for me. Will there be any alk/ca demands? I don't want to have to keep dosing a 2part to maintain it. Think I can get away with just topoff and a bi-weekly 2 gal water change? I won't be feeding heavily. I'm thinking one small fish feeding every day or every 2 days, and feeding the rose once a week for now.

Opinions? Thanks in advance!