kH keeps dropping while using Kalkwasser!

[Gustavo89]

Hello, im using Kalkwasser in my ATO (20 Liters, about 5.28 Gallons), im dosing right now 9 Grams of Kalkwasser.

I made all the numbers before doing the calculation on the dosing.

Its the Second time that ive refilled the ATO and it doesnt maintain my KH at 8. After the ATO is empty (around the 10th day), my kh is around 7dKH.

My calcium keeps stable at 412 ppm.

Does it takes time for the Reef Tank to realize that im using Kalk? or shoud it maintain the parameters instantly?

Should i add more kalk?

Thanks!

 

[tqpolo]

Isn't it 1 tsp per gallon? 1 tsp is 4 g.

 

[Gustavo89]

Isn't it 1 tsp per gallon? 1 tsp is 4 g.

So should i dose around 20g? i think you are correct, i will try to escalate up to 20g slowly!

 

[Gustavo89]

Using this online calculator, says that 9 grams is enough to replace the 0.18kH that is consumed daily on my system.

 

[Retro Reefer]

Dosing Kalk via ATO usually won’t keep up with Alk in a demanding tank.. a reactor may help, I just just dose 2 part to supplement my Kalkwasser

 

[ZoWhat]

Time out. Take a couple of steps back.

What are you using to test/measure Alk?

 

[Hitman]

Full saturation of kalk is 2 tsp per 1 US gallon.

 

[Gustavo89]

Time out. Take a couple of steps back.

What are you using to test/measure Alk?

Hanna Checker for Alk, also for Ca

 

[Gustavo89]

Full saturation of kalk is 2 tsp per 1 US gallon.

Ok, taking note right now! will try this after the ATO is empty

 

[Hitman]

Ok, taking note right now! will try this after the ATO is empty

I ran full saturation in my ato for my lps tank and it worked just fine. Just a heads up Kalk is hard on pumps which is why I no longer do it. I had to replace my tunze ato pump about every 9 months. Thankfully they are cheap.

 

[Gustavo89]

I ran full saturation in my ato for my lps tank and it worked just fine. Just a heads up Kalk is hard on pumps which is why I no longer do it. I had to replace my tunze ato pump about every 9 months. Thankfully they are cheap.

Yes, i heard something like this, i will buy another one now just in case is needed.

 

[Hitman]

Yes, i heard something like this, i will buy another one now just in case is needed.

If you have the tunze the best price I’ve found is amazon. I just got a spare last week for $20 shipped

 

[Gustavo89]

If you have the tunze the best price I’ve found is amazon. I just got a spare last week for $20 shipped

i got the coral box one... and this year has worked great!

i better start searching for spare parts!

 

[Roy Arena]

You are pretty close. Maybe another half a TSP or 1 TSP should do it. Make sure to have a lid on your top off reservoir as well. Take it slow, you'll get there.

 

[Gustavo89]

You are pretty close. Maybe another half a TSP or 1 TSP should do it. Make sure to have a lid on your top off reservoir as well. Take it slow, you'll get there.

Yea, tomorrow i will refill the ATO, si i will add some extra grams!

 

[Roy Arena]

BTW if you use the Tunze 3155 ATO you can add their 5074 calcium dispenser for kalkwasser addition. It wont have any negative impact on the pump.