My Sump - DIY

[hfp75]

Well, I got a 20g long from Kijiji and took it apart, scraped the silicon off & put it all back together. Now, my silicone job was not a pretty as it could be but it will hold and it is a sump.

I then measured and had glass cut for the inside walls.

It is now siliconed together (Dap Blue 100% Silicone NO Anti-mold) & I'm waiting a day to make sure the Silicone is cured.
Silicone - http://www.wwhardware.com/media/cata...6e95/da864.jpg

Dimensions are:
Tank - 30L x 14T x 12W

Chambers (R -> L) (the T (tall) height is the drop/fall to the next chamber. Include 12W for all below dimensions)

#1 - Live Rock (8.5W x 7.75T)
#2 - Skimmer (8.75W x 6.75T)
#3 - Walls to trap bubbles (3/4 apart from each other & 1/2 inch clearance at the bottem. I plan to put filter floss in between the baffles and not run a sock.)
#4 - Chaeto (3W x 5/8 clearance at the bottom)
#5 - Pump (RIO 2100)

I have a Phosban 150 with Rowaphos and a V2 Skim 400. I need some Chaeto (hint, hint if your in SW Calgary). I have a UV sterilizer to hook up also.

My debate is in chamber 1 under the live rock should I add a few inches of sand for a sand bed?

My tank above is a 55g with internal over flow - has 1-1.5" of 1-2mm sand (Fiji Pink) and a large amount of rock.

I also have an external canister filter and will run Carbon, Purigen and Matrix.

Pic:
http://i101.photobucket.com/albums/m...75/photo-1.jpg

I am new to this so feedback is appreciated.