Trident test error or something else

[Etienne 97]

Here is my concern i have done a water change with the redsea blue bucket and after that i have an increase on all my trident reading i was around 8 alk before my ca and mg have increase a lot i have install a dos system to replace my kamoer i was dosing 4.4 ml a day of all for reef am also dosing 4.4 on the dos my reagent are also new in the trident am not at home for 2 week so i can not confirm with my hanna checker

 

[Randy Holmes-Farley Verified Community Expert]

Can you clarify what the changes are, what size water change, etc.?

it's impossible to decipher graphs without labels (either time or concentration) on the axes. :)

 

[Etienne 97]

The aquarium is a waterbox 25g i do a 5 gallon water change every 2 week the drop into my ph is whent my co2 media was exhausted i have done my waterchange june 8 at around 19h00

 

[Randy Holmes-Farley Verified Community Expert]

For a 25% water change, if the new salt water is 4 dKH higher than the tank, alk will rise by 1 dKH.

The calcium rise of 75 ppm, if accurate, would imply a super high level in the salt mix.

I’d run your tests on a batch of new salt water.

 

[Etienne 97]

Ok but like i said am not at home until 2 week i have also mix a new batch of all for reef by weight 160g into 1000 ml of ro water i also use the red sea blue bucket

 

[Etienne 97]

Here is my reading at around 12h00

 

[Randy Holmes-Farley Verified Community Expert]

I would try to match your new salt water alk to the tank alk, or do smaller, more frequent water changes.

 

[Etienne 97]

Before that water change i was keeping my alk at around 7.8 to 8.3 i will ask to someone to test my alk with my hanna checker by facetime

 

[Etienne 97]

I have ask to my girl freind to test my alk and am at 158 ppm on my hanna checker does my trident can be crazy i have bought it used with a new 2 month reagent i have also perform a calibration with the neptune solution on july 1 2025