pdrefer636
New Member
i just bought a new hydrometer and found my salinity up to around 1.030 all the tank life ok for now how do i bring the levels down safely. :help:150 gallon tank
salinity
- Thread starter pdrefer636
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fedukeford
Active Member
you take some water out, then replace that water with water that has low saltinity
pdrefer636
New Member
how often and how much
carshark
Active Member
no id recommend first buying a refractometer, it will give you accurate readings unlike a hydrometer, but second, start by doing small 2-5 gallon water changes of RO water per hour until you get the desired 1.023-1.025. over a 24 hour period, also are you using RO water for top offs?
carshark
Active Member
Originally Posted by jjlittle
Dont drop the salinity more then .001 in one shot and I woul wait between a few days . I would also suggest getting a refractometer for my hydrometer was off .006. You need to do it very slow just like everything in this hobby.
yeah but over a 48 hour period it is suggested when doing hyposalinity, at a gallon per hour(in a 75 gal.), that drops you over .016 over 48 hours, it is safe i assure you, i just did it...but do what you will...now going up is a whole different story, thats a 5-7 day process for .016 back up!
Dont drop the salinity more then .001 in one shot and I woul wait between a few days . I would also suggest getting a refractometer for my hydrometer was off .006. You need to do it very slow just like everything in this hobby.
yeah but over a 48 hour period it is suggested when doing hyposalinity, at a gallon per hour(in a 75 gal.), that drops you over .016 over 48 hours, it is safe i assure you, i just did it...but do what you will...now going up is a whole different story, thats a 5-7 day process for .016 back up!