Welcome to TerraForums — a long-running carnivorous plant community established in 2001. Register for free to join the conversation, ask questions, and connect with growers from around the world.
Iirc, blasting sand is even less expensive and it comes in different grit sizes. In our area, it's close to pure and doesn't add to TDS. Forbes had told me in the past that the stuff around Los Angeles was nasty & couldn't be used. Due to weight, much of this stuff is typically sourced locally.
A few tests:
- visual (it shouldn't look like grains of lime)
- put some in a small cup of vinegar & watch for bubbles
- place some in some pure water & monitor TDS (after rinsing)
I actually have a 50 lb bag of that in the garage. Since it was a "broken bag" (got ripped on a pallet), it cost only 62 cents. Now that's a deal! ALL MEDIA SHOULD BE RINSED WELL!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.