High kh

[swedishreefer]

So basicly my leather corals arent verry happy its 100% new saltwater whit salinity 1.025 and Dkh 18 ,calsium 290-300. What do you guys think ? I have like a ton of balling salts that i got whit the tank could i do something whit that?

 

[Tautog]

Let your Alkalinity drop naturally and therefore, do nothing.
You need to increase the Calcium up to 430 ppm
Check your Magnesium level, it’s properly low, increase to 1350 ppm
Wait things out!
Whatever you did to get your Dkh to 18..........Don’t do it again.
Whatever salt you used for the WC? Don’t use it. Salt mixes don’t mix that high.
What did you add????

 

[swedishreefer]

Let your Alkalinity drop naturally and therefore, do nothing.
You need to increase the Calcium up to 430 ppm
Check your Magnesium level, it’s properly low, increase to 1350 ppm
Wait things out!
Whatever you did to get your Dkh to 18..........Don’t do it again.
Whatever salt you used for the WC? Don’t use it. Salt mixes don’t mix that high.
What did you add????

I added absolutley nothing only my fish and old rocks i used to have 18 kh in my old tank too for about 2 years. I used the same brand of salt the whole time so i guess its not the best brand of salt

 

[swedishreefer]

I added absolutley nothing only my fish and old rocks i used to have 18 kh in my old tank too for about 2 years. I used the same brand of salt the whole time so i guess its not the best brand of salt

Picture of the bucket

 

[Randy Holmes-Farley Verified Community Expert]

Did you use tap water to make the salt water, or top off for evaporation? Both can add alkalinity.

Reef Crystals does not normally have that much.

 

[swedishreefer]

Did you use tap water to make the salt water, or top off for evaporation? Both can add alkalinity.

Reef Crystals does not normally have that much.

Yes i normally do water changes whit osmos water but when i filles upp my new tank i mostley used tap water. And i know i usually used tap for top off becaous of lazyness so thats might be where the problem is. I cheked the magnisum level and it was about 1100-1200ppm