maybe a stupid question?

[dmbfreek]

I'm not sure if this is sand for saltwater or freshwater. I've never seen it so white before, it looks like rock salt:?:. Anyone know how I can figure this out?

 

[Snowboarda42]

Either way, I wouldn't use it in a SW tank. Reason being is the size of the grain. It will end up collecting detrius and become a nitrate factory. Go with a finer sand thats sugar grain sized. I use stuff that is .5mm-1.7mm

CLICK for a picture.

 

[returnofsid]

I agree with Elliot. Way too large of grain size for a salt water tank. You'll end up with nitrates from hell and your sand covered in algae. Take Elliot's advice and get the sugar sized sand. You want a sand that's Aragonite based.

 

[Herefishyfishy]

In the days long ago of undergravel filters, we used to use that crushed marble as filter media. It is best in the garden out back...

 

[Boomer]

it looks like rock salt

That looks like pure Limestone or Dolomite. Where did you get it form? What does it say on the bag ?

 

[dmbfreek]

Haha, Thanks guys!

 

[returnofsid]

I see the wheels in the Chemistry Mind of Boomer turning.......to be continued.....

 

[dmbfreek]

I got it used in 2) 5g buckets

 

[Herefishyfishy]

http://www.petsforum.com/personal/trevor-jones/crushed_marble.html

 

[Boomer]

......to be continued.....

Well, I cold talk about how everybody is way on what sand size is and means What most call fine sand is very corase sand and allot of it is gravel. I'll make it easier

 

[dmbfreek]

OK. Ant opinions on black moon sand?

 

[billaweed]

just use gravel from your driveway. I hear thats the best for reefs j/k

 

[dmbfreek]

Yeah but my driveway has weeds and other stuff growing. Do you thing that would work for macro algae?

 

[Damsel13]

Please don't use the stuff from your driveway before you try and understand what Boomer posted.