Ca + kh about to blow in my tank ...

hi every body ...am new here and glad to be one of your family.
i have a 100 gallon reef tank from 1 year and every thin is fine but there is smthin am worry about ,the reading of ca & kh
ca : 650 ppm
kh : 18 dkh
other reading is very good and almost perfect
so should i worry about ca&kh or not ?:-/

 

Yes you should be worried. Your calcium should be 420-450 ppm and your alk should be 7-11 dKH. I'm guessing you are dosing. Salt doesn't have levels this high. Other possibility is that your hydrometer is off.

 

what are your mag readings at and SG?

 

Welcome to 3reef.

What are you dosing?

 

mmm am dosing Kent purple tech..and using Kent marine Salt
water Parameters is :
PH : 8.1
SG : 1.025
Ca : 650
Alk : 18 dkh
Magnesium : 1350 ppm
Phosphate : 0
NH3 + NO2 + NO3 : 0
Iodine : 0.1 ppm total of all forms
Strontium : 10 ppm
Boron : 10 ppm
tested by Salifert test kits
every think doing great ...and coraline algae appears in 5 colors any way i think that high level of ca and alk is not bad .....

 

I would double check your test kits with another brand to make sure those are accurate. Your Alk is way up there, along with your Ca. Purple Tech (and Purple Up) are Ca/Alk supplements marketed toward Coralline algae...a lot of people have similar problems blindly dosing this supplement. If you don't have anything in the tank to pull these elements out, to keep up with the dosing, you will continue to add more into your system.

 

Agreed,if there's not much of a cal/alk demand from clams,sps and most lps,it sounds like a case of overdosing and/or dosing blind.At those levels,i wouldn't wait for it to drop on it's own,but instead drop them through a series of small water changes and no dosing until your numbers are back in check.But even this must be done slowly as you don't want to change your parameters too quickly,small frequent changes will be much less stressful for your livestock.

 

Good advice...but before you do this, double check your test results through another kit.

 

am already tried another test kits (Prodac) same results ....
any way every thin is okay and all corals are happy