Salt is at 38?

[ZombieEngineer]

15 ppm (0.135 millimoles/L) calcium chloride--> 9.6 ppm chloride
14.3 ppm Na2CO3 (0.135 millimoles/L) --> 6.2 ppm sodium

Gives an extra 19 ppm (0.016 ppt) of salinity per day or 0.5 ppt per month

Dang it. Had it right to begin with and then second guessed myself whether ppm was by weight or by ion count. Been 13 years since I took chemistry.

 

[Randy Holmes-Farley Verified Community Expert]

Dang it. Had it right to begin with and then second guessed myself whether ppm was by weight or by ion count. Been 13 years since I took chemistry.

oops, wait, I messed that up. I did it for 15 ppm calcium chloride, not 15 ppm calcium.

The actual salinity increase for 15 ppm calcium is 2.77x higher, or 0.044 ppt per day or 1.4 ppt per month.

 

[Jeffcb]

Just an update. I have Reef Tank back down to 35.4. I removed 1/2 gallon at a time and let gravity ATO fill it back up over the last couple of days.

I wish I would of counted but I probably removed between 4 and 5 gallons.

Everyone in the tank seems happy.

 

[Jeffcb]

What is going on here?

I slowly lowered salinity to 35.5 in my 250 liter Reef Tank. Its back up to 37 in just a month. Is Red Sea Foundation B that salty? Freshly calibrated Hanna checker and refractor calibrated with 35 fluid. I know its correct because my fowlr is at 33.3 same as always.

Coral sticks growing like crazy Alk 7.8. I dose 32 ml Red Sea foundation B per day. Probably a lot but...

 

[Randy Holmes-Farley Verified Community Expert]

What is going on here?

I slowly lowered salinity to 35.5 in my 250 liter Reef Tank. Its back up to 37 in just a month. Is Red Sea Foundation B that salty? Freshly calibrated Hanna checker and refractor calibrated with 35 fluid. I know its correct because my fowlr is at 33.3 same as always.

Coral sticks growing like crazy Alk 7.8. I dose 32 ml Red Sea foundation B per day. Probably a lot but...

Yes, two part methods raise salinity substantially.

 

[ScubaFish802]

Has the ATO been draining? I have heard of salt build up causing it to stop functioning correctly

 

[Justdrew]

Yes, two part methods raise salinity substantially.

Yep, I had to remove 1/2 gallon of salt water every couple weeks or so in my tank.

 

[Jeffcb]

Has the ATO been draining? I have heard of salt build up causing it to stop functioning correctly

Nope, Just cleaned it out today.

 

[Jeffcb]

Yep, I had to remove 1/2 gallon of salt water every couple weeks or so in my tank.

I have upped B quite a bit to try and keep alk up. Stiks are consuming it fast. They are growing.