Calcium Dosing Question

brianbo493

New Member
View Badges
Joined
Aug 26, 2020
Messages
23
Reaction score
13
Review score
+0 /0 /-0
Location
florida
So I'm starting to dose calcium and Alk using Reef fusion 1 and 2. I want my alk @10dkh and my calcium @450ppm. I already figured out my alk drops 1.0dkd a day so I'm dosing 3mls a day @.5mls. My question is with my calcium it drops 25ppm a day and to raise that back up to 450, it says I should dose 95mls of fusion 1.Does that sound correct? To me it seems like a lot to dose a day?
 
Aquarium Specialty - dry goods & marine livestock
OP
B

brianbo493

New Member
View Badges
Joined
Aug 26, 2020
Messages
23
Reaction score
13
Review score
+0 /0 /-0
Location
florida
I checked it 3 days straight at the same time and it started at 450ppm then day 2 was at 425 and day 3 400. The alk started at 10 and by day 3 was 9.8. Im using a Hanna checker for my alk and salifert for calcium
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
45,395
Reaction score
34,431
Review score
+0 /0 /-0
Location
Arlington, Massachusetts, United States
I suspect the calcium drop is not real. It implies that the alk demand was far higher than you report. More than 3 dKH per day.

I'd start by dosing the matching amount of calcium for a week and see what happens. Reef Fusion is not properly designed for 1:1 dosing, but in this case, I'd pick the dose based on alk demand, use the same for calcium, then after a week, if calcium seems to still be falling, dose more of it each day.
 

PICK the Most Tested & Least Tested Parameters of your Tank (Pick 2)

  • Calcium (most)

    Votes: 24 6.2%
  • Alkalinity (most)

    Votes: 276 71.3%
  • Magnesium (most)

    Votes: 3 0.8%
  • Phosphate (most)

    Votes: 24 6.2%
  • PH (most)

    Votes: 42 10.9%
  • Nitrate (most)

    Votes: 36 9.3%
  • Nitrite (most)

    Votes: 2 0.5%
  • Ammonia (most)

    Votes: 8 2.1%
  • (least) Calcium

    Votes: 6 1.6%
  • (least) Alkalinity

    Votes: 2 0.5%
  • (least) Magnesium

    Votes: 29 7.5%
  • (least) Phosphate

    Votes: 5 1.3%
  • (least) PH

    Votes: 14 3.6%
  • (least) Nitrate

    Votes: 3 0.8%
  • (least) Nitrite

    Votes: 120 31.0%
  • (least) Ammonia

    Votes: 159 41.1%
Top