Mystery Rising Alkalinity

Ozzi-reef

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I’ve had a lot of trouble with my tank in the past month. First I tried to deal with Bryopsis with Fluc and that caused a massive Dino outbreak that I have been battling with Vibrant, Peroxide, UV, Blackout & raising NO3. Looks like I’m finally gaining ground but something very weird is going on with my dKH. I had risen a full point in 2 days without any dosing. I have both a KHG Pro and a calc stirrer - both connect the Apex. The RO line to the Kalk Stirrer gets diverted by a solenoid if it goes over 8.4. The KHG is programmed for 8.5. To be super sure I have put cups under both dosing outlets to capture anything- but nothing has been produced for over 2 days. What else could be increasing my dKH?
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Randy Holmes-Farley

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You said you raised nitrate. Dosing nitrate will raise alk as the nitrate is consumed.

I’m a little confused on the setup. If pH declined due to CO2 from decomposing organics from dead algae or dinos, would that mean more limewater was added, increasing alk?
 

When to mix up fish meal: When was the last time you tried a different brand of food for your reef?

  • I regularly change the food that I feed to the tank.

    Votes: 41 22.8%
  • I occasionally change the food that I feed to the tank.

    Votes: 60 33.3%
  • I rarely change the food that I feed to the tank.

    Votes: 58 32.2%
  • I never change the food that I feed to the tank.

    Votes: 17 9.4%
  • Other.

    Votes: 4 2.2%
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