- Joined
- Feb 12, 2025
- Messages
- 65
- Reaction score
- 31
- Location
- Minneapolis
- What state or country do you live in
- Minnesota
I’m new to this hobby and have an IM Nuvo 14 with a couple of clownfish and three soft corals. The tank is about three months old and in many ways it’s looking great. Fish and corals seem healthy so far. I’d like to keep building it up and in time move into LPS corals, and I know that l’ll need fairly stable parameters once I get to that point. While most of my parameters seem normal, I can’t seem to keep the alkalinity above 7dkh (Hanna checker). Usually I test the tank water in the 6.3-6.8dkh area between water changes. PH is 8.1 using a calibrated Apera pen.
I’m using AquaForest Reef Salt and mixing to 35ppt. Following instructions exactly using a kitchen scale to measure 415g of salt for 10L of rodi water. Calibrated refractometer shows 35ppt when mixed, as it should, but then, in the mix I made tonight, the alkalinity read 6.9dkh. The ICP results on this batch of salt say it tested at 8.4dkh.
I have no idea what I am doing wrong. I rolled the salt bucket around as the directions said, I’m mixing at the temperature I’m supposed to… but I’m missing something right?
I’m not opposed to setting up to dose, but feel like I should try to get the parameters out of the salt that I’m supposed to before I start chasing other solutions.
Any ideas? Thanks!
I’m using AquaForest Reef Salt and mixing to 35ppt. Following instructions exactly using a kitchen scale to measure 415g of salt for 10L of rodi water. Calibrated refractometer shows 35ppt when mixed, as it should, but then, in the mix I made tonight, the alkalinity read 6.9dkh. The ICP results on this batch of salt say it tested at 8.4dkh.
I have no idea what I am doing wrong. I rolled the salt bucket around as the directions said, I’m mixing at the temperature I’m supposed to… but I’m missing something right?
I’m not opposed to setting up to dose, but feel like I should try to get the parameters out of the salt that I’m supposed to before I start chasing other solutions.
Any ideas? Thanks!

