Why 1.026?

MattDaReefer

Active Member
View Badges
Joined
Jul 12, 2019
Messages
159
Reaction score
131
Location
Massachusetts
Rating - 0%
0   0   0
It would depend on the salt you use for 1 ie... Reef crystals has higher Ca,Alk,Mag @ 1.026 than @ 1.025.
Also depends on the type of tank you're keeping Mix reef, Fish only, SPS only all do better at different points.
 

Gareth elliott

Read, Tinker, Fail, Learn
View Badges
Joined
May 7, 2017
Messages
5,468
Reaction score
6,935
Location
NJ
Rating - 0%
0   0   0
this has to deal with how we measure vs what the actual salinity of the tank is.

so at 1.025 at 76f you can convert to 35 ppt.
If you are using a automatic temperature changing refractometer. This is null, just use the 35ppt. :)
 

ZoWhat

7500 Club Member
View Badges
Joined
Feb 23, 2014
Messages
9,946
Reaction score
17,598
Location
Cincinnati Ohio
Rating - 0%
0   0   0
Where are you getting the generalized statement that MOST reefers keep their SG at 1.026?

I beg to differ.... that most reeferes aim for 1.024

As for my dominated zoas/palys tank.... the zoas/palys do best at 1.023. At 1.026 they start to retract and some polyps start to melt away especially if it climbs to 1.027/8

moreover, fish get more irritated and territorial at 1.026/7/8
 
OP
OP
B

Back where it all began

Active Member
View Badges
Joined
Jun 6, 2019
Messages
404
Reaction score
269
Location
White Plains, new york
Rating - 0%
0   0   0
Where are you getting the generalized statement that MOST reefers keep their SG at 1.026?

I beg to differ.... that most reeferes aim for 1.024

As for my dominated zoas/palys tank.... the zoas/palys do best at 1.023. At 1.026 they start to retract and some polyps start to melt away especially if it climbs to 1.027/8

moreover, fish get more irritated and territorial at 1.026/7/8
Right. It's seems as though when reefers list their parameters they usually list 1.026. Sometimes 1.025. If their salinity is lower, the usual advice is to raise it. My lfs which is exceptional also uses 1.026.
 
OP
OP
B

Back where it all began

Active Member
View Badges
Joined
Jun 6, 2019
Messages
404
Reaction score
269
Location
White Plains, new york
Rating - 0%
0   0   0
Where are you getting the generalized statement that MOST reefers keep their SG at 1.026?

I beg to differ.... that most reeferes aim for 1.024

As for my dominated zoas/palys tank.... the zoas/palys do best at 1.023. At 1.026 they start to retract and some polyps start to melt away especially if it climbs to 1.027/8

moreover, fish get more irritated and territorial at 1.026/7/8
I agree. My Duncans like 1.025ish. My torch likes 1.026. Doesn't seem like much difference, but significantly is.
 

ScottR

Surfing....
View Badges
Joined
Feb 12, 2019
Messages
8,365
Reaction score
28,238
Location
Hong Kong
Rating - 0%
0   0   0
Where are you getting the generalized statement that MOST reefers keep their SG at 1.026?

I beg to differ.... that most reeferes aim for 1.024

As for my dominated zoas/palys tank.... the zoas/palys do best at 1.023. At 1.026 they start to retract and some polyps start to melt away especially if it climbs to 1.027/8

moreover, fish get more irritated and territorial at 1.026/7/8
@skimjim ~ sounds like you need to start a poll. Most people I know do keep it at 1.026. I’m not saying it’s best but what I have always done. But I keep it lower in FO tanks. I agree that lower salinity is a cost-saving measure. Some LFS keep their tanks at 1.022 for corals and even lower for fish.
 

SashimiTurtle

Turtle
View Badges
Joined
Feb 24, 2017
Messages
9,241
Reaction score
35,050
Location
South Carolina
Rating - 0%
0   0   0
I usually run my tank at minimum of 1.026. I believe the Gulf of Mexico is 1.027, the Red Sea varies highly from 1.026 to as high as 1.032. I believe the majority of Reefs are around 1.026 tho.
 

Jax15

Active Member
View Badges
Joined
Feb 2, 2018
Messages
293
Reaction score
371
Rating - 0%
0   0   0
Ya this one is kind of confusing. I think different salt mixes recommend different SG. I use RSS blue bucket, and the recommendations are sort of all over the place. I have mixed reef, SPS dominant, and have found 1.026 to be sort of the middle ground between what’s recommended for mixed reef/softie/LPS (1.025) and SPS (35.0/1.026+ @ 77•F). It’s easy to know what to do when you have a species specific tank, but for mixed reef with different dominance you have to sort of pick which direction +/- is best for the average. For example, my Acros are most valuable to me so I lean in that direction, even though I can tell it’s not ideal for my zoas.

1.025, 1.026... either is probably fine if you keep the temp stable.
 

SashimiTurtle

Turtle
View Badges
Joined
Feb 24, 2017
Messages
9,241
Reaction score
35,050
Location
South Carolina
Rating - 0%
0   0   0
My zoas and some LPS at 1.028, they are absolutely happy and healthy.

20200201_200924.jpg
 

Entz

Active Member
View Badges
Joined
Feb 21, 2019
Messages
412
Reaction score
769
Location
BC, Canada
Rating - 0%
0   0   0
Not sure where it comes from, gonna blame big salt and their SPS should be 35ppt (likely more to do with mixed cal/mag/alk than salinity).

I have always aimed for 1.025 , mainly because your right in the middle of +- 0.001 most test equipment is at.
 
Last edited:

biophilia

Well-Known Member
View Badges
Joined
May 6, 2018
Messages
581
Reaction score
1,277
Location
CA
Rating - 0%
0   0   0
For those who are claiming that they have specific corals that do best at 1.024 vs 1.025 vs 1.026, I’m curious what instrument is being used to check the salinity and reach that conclusion? Almost all of the refractometers hobbyists typically use have a stated accuracy of +/- 0.001 sg — so a reading of 1.025 means only that the actual salinity is anywhere from 1.024 to 1.026...
 

High pressure shells: Do you look for signs of stress in the invertebrates in your reef tank?

  • I regularly look for signs of invertebrate stress in my reef tank.

    Votes: 42 32.1%
  • I occasionally look for signs of invertebrate stress in my reef tank.

    Votes: 29 22.1%
  • I rarely look for signs of invertebrate stress in my reef tank.

    Votes: 26 19.8%
  • I never look for signs of invertebrate stress in my reef tank.

    Votes: 34 26.0%
  • Other.

    Votes: 0 0.0%
Back
Top