- Joined
- Aug 15, 2017
- Messages
- 4,523
- Reaction score
- 7,484
- What state or country do you live in
- Georgia
Hi guys
Now that I have evidence that my corals are liking the environment and are growing, I took some test for alk and calcium in anticipation of starting to dose. Weird results though. Testing with Hanna checkers
Freshly made saltwater: mixed yesterday, 77of with mixing overnight. 1.026. Instant Ocean original. Mix up 45 gallons at a time
Alk: 9.8
Ca: 394
System: 180 DT, another 140 in sump system. Typically change out 20-25% every three weeks.
Alk 11.7
Ca: 365
Other parameters
14 months old
PH: apex 8.1-8.35
Nitrate: 5ppm, but I have to actively dose potassium nitrate every 4-5 days to keep it here. Drops to zero in 4 days
Po4: 0.08. Was dosing flourish for a few weeks at 0.1 target, but seems to have found its balance with my food load.
I started dosing both due to Chrysophytes outbreak as a result idea 0 values for both. Algae came in 6 months ago, dosing 4 months, finally receedjng
Brs reefsaver rock and pukani, biospira and ammonia cycled.
Is it possible the rapid denitrification is pushing up ALK? Seems like adding 30ppm nitrate a month would push my alk up by about 1.5dKh
Is my thinking correct here?
How do I correct? I’d like to keep it in the range of the salt, so 9.8
Thanks
Now that I have evidence that my corals are liking the environment and are growing, I took some test for alk and calcium in anticipation of starting to dose. Weird results though. Testing with Hanna checkers
Freshly made saltwater: mixed yesterday, 77of with mixing overnight. 1.026. Instant Ocean original. Mix up 45 gallons at a time
Alk: 9.8
Ca: 394
System: 180 DT, another 140 in sump system. Typically change out 20-25% every three weeks.
Alk 11.7
Ca: 365
Other parameters
14 months old
PH: apex 8.1-8.35
Nitrate: 5ppm, but I have to actively dose potassium nitrate every 4-5 days to keep it here. Drops to zero in 4 days
Po4: 0.08. Was dosing flourish for a few weeks at 0.1 target, but seems to have found its balance with my food load.
I started dosing both due to Chrysophytes outbreak as a result idea 0 values for both. Algae came in 6 months ago, dosing 4 months, finally receedjng
Brs reefsaver rock and pukani, biospira and ammonia cycled.
Is it possible the rapid denitrification is pushing up ALK? Seems like adding 30ppm nitrate a month would push my alk up by about 1.5dKh
Is my thinking correct here?
How do I correct? I’d like to keep it in the range of the salt, so 9.8
Thanks

