Cool, lots of questions to answer. I will just copy and paste the questions and answer them one at a time.
1.Yeah, I think turning that 46 into a HT would be a waste because its such a nice tank...
It is a corner tank. It has already been used for a hospital and quarantine tank. Considering the rigors of water changes during QT, 46 gallon was just a waste.
2.Is this the same space your considering for a QT?:
Yes that will be the space, the 10 gallon was a refugium, I broke it, so refugium stuff went in sump. Made new space for the QT.
3. Can you place everything on the other side of the sink? Getting the 46 out of there may help make the whole room "flow" better.
The other side is occupied by water change system, so it is unavailable. 46 is leaving the room, will free up some space big time.
4. How about building a stand for the 20L just as you described, but build it to hold two 20L? Kind of like your sump/fragtank stand. One atop the other. Plumb everything downhill and use T's and ball valves to divert flow as needed. One QT, one HT... better yet, stack the tanks three high, and have two QT (I know how you get when it comes to collecting fish ).
Darn you and your ideas!!! Your the devil!!!
5.As for the UV, I don't use them, so I don't really feel qualified to say... I don't see anything wrong with it aside from extra electrical use and maintenance. It's a QT, keep it sterile as possible, right?
Great point, I will have to weigh the cost vs. benefit.
6.100 % on using your display water for QT. I have a little 30 gal tank that i use and will breaking the dust off since I want tom get another CB since mine got stuck in a rock.
Coral Beauty,copper band or Coral Banded? Or some other CB?
7. I am not sure if you were planing on this or not. Just make sure your QT water doesn't go back to your display.
I understand that. It will be waste water from water changes, I would never put it back in the display regardless.
8.If you don't have a hang on back make sure you have plenty of top off water and try and do a 10% change everyday. With 10 gallons stuff can get worse quickly. I have a little hang on back I used for my QT. I hope I can find it when I get home. Also another point get a little heater if you don't have one.
I have a filter, heater and top off water. Water changes will be done in conjunction with the 5% changes that are done every 3 days in the display. 5% of the display will equal a 75% change in the QT.
9.I heard people painting back and sides to keep the fish calm.
I disagree, part of the QT process is the fish adjusting to the owners presence, not possible if they cant see you.
Thanks for the participation guys!