, you should not wait to do the sand. If you wait to do the sand, it will take more time for the sand to become good. Most people use Southdown or Old Castle brands of sand (available at Home Depot in most northern states) or some other kind of "Carribean Play Sand". I use silica play sand, rinsed very very thoroughly, with a couple of LS
bags mixed in. There are many different methods of doing the LR
and sand bed. I will list a couple:
1.) Some believe the best way to add the rock and sand is to put small pvc
cylinders on the glass bottom to support the rock. You put your base rock on them how you wish, and then pour in the sand.
2.) Put the base rock on the bottom glass, and add sand around it.
3.) Put the sand bed in, then add rock. (This is my favorite method, but my base rocks are huge, like 15 lbs. on average.)
4.) Some people don't even use sand, they just use LR
on a glass bottom. (this is from a long and exhausting debate on whether DSB
is the way to go, because apparently some poeple have problems with the DSB
"crashing" after several years and devastating their tanks. I do not wish to get involved in that arguement, though
As for the sand, there are a few options:
1.) Purchase all live sand (mucho dinero!!)
2.) Use all Play sand. With this method, you can still mix some crushed coral or argonite, and it will help to buffer the water.
3.) Use Play sand and supplement it with LS
. (my choice method)
No matter which sand you put in, it will eventually gain the beneficial bacterias from the LR
(without any LS
to start with this could take a while) and become LS
. If you just throw a bag of LS
in with the Play sand, you should be golden.