High alkalinity and calcium

nicks8201

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I have been having a issue the last month or so with my high alkalinity and now my calcium is high now too.and my ph keeps dropping. I had a bunch of my corals die recently and not sure if it was from this. all I have left are zoas which are doing great, torch that won’t really open and GSP that won’t open anymore. I do 10% water changes every week. What am I doing wrong here?

75 gallon tank with Red Sea coral salt
alk: 14
Calcium:520
Ph: 8.2
Phos: 0.25
Salinity: 1.025
Ammonia 0.25
Nitrite 0
Nitrate 5 ppm
Temp:72

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Nigel35

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Are you dosing at all? The Red Sea pro coral salt is designed to make the tank have quite high amounts of Calcium and a high alkalinity level. I would consider taking a break from the Red Sea salts. Temp is low I would move it to 78-80 degrees. I would cut the ammonia down to zero. 0.25 is not a good number to have it at. your Ph is quite well actually! 8.2 is a great number to have it at.
 

GillMeister

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I wish I was consistently at 8.2 pH. Calcium is a little high as is alk. I had the same problem initially due to an overreaction to a bad test kit. If you're not dosing I would slowly, slowly transition to RS Blue Bucket. Those levels will be more in line with your goals.
 

burningmime

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Calibrate your refractometer/salinity probe then see if you can borrow someone else's. If both are elevated, it's very often caused by high salinity.
 
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nicks8201

nicks8201

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No I’m not dosing , see I was told that the blue bucket wasn’t good for the corals. And I been trying to get the ammonia down but no luck and I been using prime, I’m using the API Test kit can that be a bad kit
 

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