CACO3 to clear water. but it will rise CA in tank? And how many Grams?

Winterfest Live Sale

Randy Holmes-Farley

Reef Chemist
Review score
+0 /0 /-0
View Badges
Joined
Sep 5, 2014
Messages
54,732
Reaction score
47,551
Review score
+0 /0 /-0
Location
Arlington, Massachusetts, United States
but here i wasn't sure about the quantity since he say to make 500gr uses 10tbs and 425/450gr of rodi. my tbs conversion chart says a tbs is 14 to 17g that make 140grams + 425 grams that is over 500grams from there is my doubt. but probably i am not seeing something. ...and must say that in general when i see TBS or Teaspoon or cup i just think about a normal eating spoon or a coffee mug.

Correct, you are not understanding. Forget that the unit of measure and the eating utensil have identical names, just alike saying someone is 6 feet tall is not vague depending on the size of his feet.

Like a liter, a teaspoon does not have a specific weight.

Also like a liter, a teaspoon as a unit of measure is a very specific volume. It is exactly 5 mL. That 5 mL may have different weights depending on what comprises the 5 mL.
 
OP
fr3n0z

fr3n0z

Active Member
Review score
+0 /0 /-0
View Badges
Joined
Sep 5, 2022
Messages
194
Reaction score
91
Review score
+0 /0 /-0
Location
France
From the DIY KZ thread

"For a 250mL solution, use 5 level tablespoons (roughly 115 grams) of CaCO3 powder and add roughly 230mL of RO/DI water. This should mix right about 250mL. The powder will NOT dissolve, it will stay suspended in the water."
Hi, i have done the recipe, just to be sure because i am not sure about the "non dissolve" once put the CACO3 and mixed, the rodi got extremely with and milky...is this normal?
 
Join the movement!
AquaCave Logo Banner

Are there parts of the hobby that you don’t talk about?

  • I am an open clam . . . er, open book about my tank challenges

    Votes: 121 51.7%
  • I share many of my challenges, but not all of them

    Votes: 70 29.9%
  • I rarely share my reefing challenges

    Votes: 32 13.7%
  • I’m still clammed up. I have nothing to say

    Votes: 15 6.4%
Geo's Reef
Top