Kalkwasser Reactor and Red Sea Trace Elements

hqaquarium · Feb 15, 2020

Display Tank: 75G
Sump: 38g tall
Total volume roughly 90g
Daily evap rate: 1g (7g/week)

I run a Two Little Fishes Kalwasser reactor with about half a cup of BRS Pharma grade KW every two weeks. I have my apex to top off using the KW reactor whenever my pH is < 8.35 and the ATO to run if the pH is > 8.35.

I'm trying to figure out how much Red Sea Trace Elements I can be dosing per day without have to buy more test kits. I know the simple answer is "test for it" but I'm just wondering if anyone else has experience with this already. BRS posted this video regarding how much they dose based on how much saturated KW solution is used, but not with a reactor in-line. I've been dosing 2mL of each per day and everything seems to be happy and colorful.

Currently the tank is mostly SPS frags

hqaquarium · Feb 15, 2020

Apex reporting on ATO and KW

Emon · Feb 15, 2020

I have almost the same set up and the trace elements part is getting me soooo confused. I was overdosing trace elements and everything started becoming green. I did an icp test and waiting for reply and then dose according to the their results

Emon · Feb 15, 2020

hqaquarium said:
Apex reporting on ATO and KW

When u use the ato and kalk reactor does ur calcium and all get out of wack?

hqaquarium · Feb 15, 2020

Emon said:
When u use the ato and kalk reactor does ur calcium and all get out of wack?

Seems stable. I started the tank with Instant Ocean and then switched to Red Sea Salt, ideal for SPS. I've had to dose to bring my MG up since the switch, but after burning through a 55 gallon bucket everything seems to have stabilized. I do about 5g/week.