uisge-beatha Posted December 1, 2015 Share Posted December 1, 2015 I've been using the following formula to adjust my salinity level, and I thought that others might find it useful as well. Enjoy! EDIT: As Andreww wisely pointed out, change your salinity SLOWLY to ensure happy tank inhabitants. If your water is too salty: Volume of sea water in gallons to remove and replace with RODI water = C x ( A - B ) / A where A = current salinity in ppt B = target salinity in ppt C = volume of water in gallons For example, let's say I have a 24 gal tank that actually holds 20 gal of water, my current salinity is 36, and I want my salinity to be 35. A = 36 B = 35 C = 20 C x ( A - B ) / A = 20 x (36 - 35) / 36 = 0.556 So, I would need to remove about 0.6 gal of sea water and replace it with RODI to move my salinity from 36 to 35. If people are interested, I'll post a formula for fixing hyposalinity, as well. Link to comment
Andreww Posted December 3, 2015 Share Posted December 3, 2015 Interesting , although I wouldn't just jump from 1.028 to 1.026 in minutes... I think it's wiser to replace water gradually and replace with RO/DI and test salinity. It's even worse to jump from lower salinity a few points up all of a sudden.... Link to comment
HarryPotter Posted December 3, 2015 Share Posted December 3, 2015 Sure hypo salinity would be interesting as well! Link to comment
uisge-beatha Posted December 3, 2015 Author Share Posted December 3, 2015 Excellent point, Andreww! I'll edit the example to reflect a slower change in salinity. Thanks! Link to comment
HarryPotter Posted December 3, 2015 Share Posted December 3, 2015 A great way to fix it would be to calculate the amount of salt water to remove using your formula and then get to that point by taking out a few cups a day and allowing your ATO to replace that water with RODI! Link to comment
Recommended Posts
Archived
This topic is now archived and is closed to further replies.