Mixed calcium powder with bicarbonate

Jonas Bergkvist

Active Member
Review score
+0 /0 /-0
View Badges
Joined
May 4, 2020
Messages
143
Reaction score
102
Review score
+0 /0 /-0
Location
Malmö, Sweden
Hi there!

My aquarium is a bit low on both alkalinity and calcium, so i added two teaspoons of Bicarbonate and 25 gr of Calcium something powder in a jug and it started to sizzle. Is that normal? :) Should i wait until the solution is completely clear and then drip it?

My system volume is 750 litres and current Alkalinity is just below 8 and Calcium 388. I guess these values are ok, but i noticed over time it's dropping so i want to counter add this solution so that it won't drop to low. Oh and one more thing, can i add this solution directly to my top off system? It's a 50 liter container. My Magnesium is 1284.
 
Click to watch best scape method in 5 easy steps!

MnFish1

10K Club member
Review score
+0 /0 /-0
View Badges
Joined
Dec 28, 2016
Messages
12,120
Reaction score
12,799
Review score
+0 /0 /-0
Hi there!

My aquarium is a bit low on both alkalinity and calcium, so i added two teaspoons of Bicarbonate and 25 gr of Calcium something powder in a jug and it started to sizzle. Is that normal? :) Should i wait until the solution is completely clear and then drip it?

My system volume is 750 litres and current Alkalinity is just below 8 and Calcium 388. I guess these values are ok, but i noticed over time it's dropping so i want to counter add this solution so that it won't drop to low. Oh and one more thing, can i add this solution directly to my top off system? It's a 50 liter container. My Magnesium is 1284.
I would throw it away - the two chemicals reacted - and you really have no clue how much has precipitated - vs how much you're adding
 

Randy Holmes-Farley

Reef Chemist
Review score
+0 /0 /-0
View Badges
Joined
Sep 5, 2014
Messages
45,905
Reaction score
35,143
Review score
+0 /0 /-0
Location
Arlington, Massachusetts, United States
Any dissolved calcium additive mixed with any dissolved bicarbonate (alkalinity) additive will precipitate useless calcium carbonate.

They must be dosed separately.
 
Top Shelf Aquatics

Saltyreef

2500 Club Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 25, 2018
Messages
4,552
Reaction score
4,124
Review score
+0 /0 /-0
Location
Bay Area, Ca
as long as it didnt cause precipitate to form and float around its likely fine. The sizzle could have been from the chemical reacting to the water.

I always opt to premix into a liquid solution before dosing though.

Edit: reread your post and if you added them both to a jar and not the tank, throw it out.
 
Reef Kinetics
Top