2nd pump in back chamber nano mod

[meleerock]

I posted this in another forum and it didnt get any response so am hoping it might do better here:
Hi Everyone. I am embarking on the nano experience soon and am pretty excited about it. I am getting a 14 gallon biocube with the stock hood and stand. The seller is also throwing in some free live sand since the tank is pre-established and he is upgrading. Anyhow, there have been a few mods the the tank so far but I was looking to add another. He replaced the stock pump with a MJ1200 but I am going to switch it out with a MJ900 for less heat. The 2nd chamber has also been made into a fuge by scraping off the black covering and attatching a light box for macroalgea growth. I guess he also increased flow to the fuge chamber by cutting something as well (think it is a common mod, im just not fimiliar with it).
I have heard a tiny bit about a mod in which you drill a whole in one of the chambers, attach a bulk head, and then add a second pump to increase flow and to save space in the display. I tried to look but cant find a whole lot of info on this being done to a 14 BioCube.
Here are the endless questions:
Can I do this in the first chamber since the second is used as a fuge and the third is for the return?
What size pump is recommended since I am already doing a MJ900 and dnt want too much flow for softies?
How low down can the hole for the pump be down in the tank?
As there is going to be live sand in the tank and dont wanna stir it up too much to create a huge cycle, can the mod still be made with the LS in there?
I know this is a lot of questions, im just new to the nano scene. Thanks in advanced and looking forward to the great replies and help!

Bryan

 

[clay12340]

You could place the pump in whichever chamber you want, but if you place it in the first it is going to compete with the fuge and other pump for flow. You can probably set it right on top of the other pump in the third chamber if you want.
Place the output wherever you like. If you want it low in the tank just put some kind of deflector to make the water come out and up instead of down at your sand bed. As long as you don't overly disturb the sand while your drilling it shouldn't do much to the sand. You might have a lot of little acrylic shavings that will be annoying, but that is about it.