Adding more substrate

[The Computer Ox]

I am getting everything ready for a move from a BioCube 29g to a SeaClear 46g. I have just about everything ready, except I will need to add additional substrate for the larger tank. I currently have 20# of Fiji Pink and will be moving it to the new tank. I was also going to add a bag of Nature's Ocean Bio-Active Reef Substrate and mix them up for a little different "texture/look". I think everything will do well in the substrate, but my only concern is with the Randalls Goby and Pistol. Any thoughts or concerns from someone that has done this (or something similair)?

http://www.drsfostersmith.com/images/products/swatches/St-29816-39436-substrate.jpg

Thanks in advance!

[BLKTANG]

Use a funnel,& a hose to put the sand where you want it.

[The Computer Ox]

Use a funnel,& a hose to put the sand where you want it.

I was thinking that when I take the old sand out I will mix the new substrate into it. That way it will be more consistent throughout the tank.