ketchup318
Aquarium Advice Regular
Hi
I've had a strange trend occurring the past few months, tipped off by my corals lack of growth and eventual shrinkage. My tank's salinity levels are dropping and I don't know where it's happening.
So, rewind a few months back. My tank's already been setup, but I add my first coral, a Pom Pom Xenia. I check all the levels and salinity, PH, etc and make sure everything's fine, and everything grows fine. Then I notice the Xenia starting to recede a little, after a few months. I check everything again, and the salinity is low, from 1.026 to 1.020. I fix it, and everything's fine again.
Fast forward to last week, and the same thing happens. I do have a top off system, but it only refills when the fuge is low. When I do WCs, the salinity is 1.026, and I refill the tank back to the same level.
So if only evaporation is occuring, and pure water is going back, everything should be in balance, right? And if I refill with the same salinity back to the same tank level, the ATO isn't upsetting the salinity levels...
Just wondering if there's anything else that could cause the salt levels to drop... thanks
I've had a strange trend occurring the past few months, tipped off by my corals lack of growth and eventual shrinkage. My tank's salinity levels are dropping and I don't know where it's happening.
So, rewind a few months back. My tank's already been setup, but I add my first coral, a Pom Pom Xenia. I check all the levels and salinity, PH, etc and make sure everything's fine, and everything grows fine. Then I notice the Xenia starting to recede a little, after a few months. I check everything again, and the salinity is low, from 1.026 to 1.020. I fix it, and everything's fine again.
Fast forward to last week, and the same thing happens. I do have a top off system, but it only refills when the fuge is low. When I do WCs, the salinity is 1.026, and I refill the tank back to the same level.
So if only evaporation is occuring, and pure water is going back, everything should be in balance, right? And if I refill with the same salinity back to the same tank level, the ATO isn't upsetting the salinity levels...
Just wondering if there's anything else that could cause the salt levels to drop... thanks