Lowering DKH with water changes

[Nick Steele]

Okay so I’ve made a mistake in the past by not mixing my salt bag and I just did yesterday and it is now mixing at 8.2 dkh instead of the usual 10.9dkh (tank is at 11.9dkh atm). If I do my usual 4 gallon water change this will lower my alk by about 1dkh but I’m not sure if this is too drastic of a change for my corals. Or maybe I should do 2 2gal water changes a week to give just a slight .5 reduction in my alk?

I currently have
1 hammer
1 frogspawn
1 Acan
4 zoas
1 gsp
2 Xenia
1 monti spongodes
1 monti digitata
1 cyphastrea

20G tank that doesn’t consume any alk or calc outside of water changes as of now.


What would be the best course of action for my future water changes? 1 4gallon change a week or 2 2gallon changes a week or maybe something else I’m not thinking of?

 

[Saltyreef]

I would choose less volume more frequent.

No big deal though, it will fall naturally.

 

[Nick Steele]

I would choose less volume more frequent.

No big deal though, it will fall naturally.

With water changes I predict I’ll be at or very close to 8.2ish dkh in about 6-8 weeks. If I let it fall naturally it would take many months as I haven’t seen an uptake outside of what water changes can handle.