Natural way to reduce ph and alkalinity?

[Dylan Grech]

So I've had my ph in the 8.5 range when I started the tank, now its right around 8.4.

Alkinity same thing started around 12dkh now it's 10.9 constantly.

I've done many water changes but numbers will not go down.

I have little to no coraline algae and only 4 softies in a 900ltr system.

Next week getting t5 and planning to start adding some LPS I already have a cotton candy reserved.

Should I just wait it out and let it drop naturally as coral start consuming it or should I step in?

 

[beaslbob]

Numbers seem fine.

 

[slipknotgrrl83]

Let it drop naturally. Once you add more coral, they will use it up

 

[Randy Holmes-Farley Verified Community Expert]

Water changes won't help unless it is a low alkalinity mix. I agree, just leave it alone.

IMO, 7-11 dKH is a fine range unless it is a ULNS system.

 

[Dylan Grech]

Thanks everyone It shall be left alone.