Hello KAN and

to TR! I'm glad you found us.
I think that your 29 with a 10-15 gallon
sump/fuge will be a fine setup. I would increase your rock to 30-40 lbs total. You could use base rock like that from
Marco Rocks, a TR sponsor and the
LR you have now will seed it. I really recommend using
aragonite sand instead of crushed coral. The coral tends to collect
detritus and that can create problems. I am a fan of a
DSB and a 29 is tall enough to accommodate one.
I think it is a good idea to save the cannister for the
FW tank. I have one that I use occasionally for water polishing but they are not a good choice for an all the time filter on a
SW tank.
In addition to your return pump you will probably want a couple of powerheads inside the tank. I am very happy with my Koralia pumps from
The Cultured Reef, another TR sponsor. For a 29 I'd go with a K1.