Alk running low

[Mark...]

Alk is running on the low side around 6.5-7 (two tests), ph is 7.8 Everything else is good. 0 ammonia, 0 nitrites, 0 phosphates, sal 1.024, temp 78.9 Cal 480, mg 1360 Did 25 gallon wc yesterday. The few corals I have are pale.

I'm baking some baking soda right now. My total water volume is approx 225g. I used the calculator on how much I need, 1.1 oz or 7 tsp, just wondering what is the time frame on adding the mixture. I don't have a dosing pump as of yet.

 

[Hockeynut]

Hey mark don't chase numbers, it is ok to be on the low side so long as it is stable. Stability is key and if you do raise it do it slow maybe take that dose you figured out and spread it out over a couple days.

 

[Raffle King]

That is what I run my alk at with no problems.

 

[saltkreep88]

+1, your alk is low but not dangerous low. The pale color is most likely from zero phosphate. Where are your nitrates at?

 

[Mark...]

+1, your alk is low but not dangerous low. The pale color is most likely from zero phosphate. Where are your nitrates at?

Nitrates are at 2 and steady. Phosphate was .08 but now 0 running GFO and wet skimmate. Tunze really pulling gunk with very small bio load.

 

[Mark...]

Hey mark don't chase numbers, it is ok to be on the low side so long as it is stable. Stability is key and if you do raise it do it slow maybe take that dose you figured out and spread it out over a couple days.

The alk was 9 on June 22nd and corals seemed fine. So it did drop, even with water changes.

 

[Mark...]

I'm waiting to pull the trigger on a Tunze ATO....will limewater in the top off solve this issue?

 

[Empire]

If it is your Alk, your sps will start receding base up. Pale is probably and most likely due to phos

 

[Mark...]

If it is your Alk, your sps will start receding base up. Pale is probably and most likely due to phos

Should I shut down the gfo for a while?

 

[Empire]

Try reducing the amount you used