got a pinch of it in my hand and held it up to a light at an angle ,i saw no tiny reflections from any silicates
I've never heard of that before. any silica based sand (not silicates, they are very different things) can have a glassy like surface, that just what silica sand is. Take a look at this microscopic comparison
of a couple sand types, you'll see what i'm referring to. That said, there is nothing wrong with silica sand, it simply lacks any of the positives an argonite sand will give you. Argonite sand is simply as close to natural as you can get (and it often actually comes FROM the ocean floor).
I think a base of the desert sand topped with argonite would be ok. because they're both sands and roughly the same size grains you should have too much settling, but over time the critters in the sand bed will mix the two together.
your bio says you from Washington PA... if you have the patience (I know.. I hear ya!) wait till spring. Southdown sand is highly seasonal as it's used in gardens and kids sandboxes so it usually only appears in spring to mid summer, then the stores let their supplies sell out until next year. It tends to be a NE product as well, so come spring you should be able to find some.
From the rest of your tank, I had Normal Output (NO
) lights and didn't think anything of it. As soon as i upgraded to PC
, it was like my tank bloomed. The coraline started to spread rapidly, a few corals I didn't even know I had started to appear.
Do you already have the HOT power filter? with LS
, its probably not necessary (just one more thing to maintain)