Salinty levels

[Blenny1988]

hey guys

Just a quick question and sorry if this subject has been covered already before!!!!

But i know that the target for a reef tank salinity is 1.025

Which is where i keep my tank at but my questions is where do you guys keep your salinity at? do you keep it at at the same or higher lower? if so have you always kept it at the same or played with abit ect just out of interest guys!!!

Thanks in advance guys

 

[Poof No Eyebrows]

I keep mine at 1.026. I did run an experiment on two of my tanks over the winter and kept them at 1.03 for 3 months. Saw no adverse effects except a noticeable increase in salt creep. Backed the level down over 3 weeks to 1.026. I did read an article talking about higher salinity possibly helping corals survive higher water temperatures. Can't remember where the article was though.

 

[Gtinnel]

I keep mine at 1.026. If kept at any reasonable salinity level I think that maintaing a stable level is more important than what the level actually is.

 

[T-J]

I keep my salinity at 35ppt.
FYI, when you say you keep it at 1.025...that's specific gravity, not salinity.

 

[Gtinnel]

I keep my salinity at 35ppt.
FYI, when you say you keep it at 1.025...that's specific gravity, not salinity.

Is using the term salinity referring to a specific measurement type? I've always used the term salinity generically wether I am measuring in specific gravity, PSU or PPT.

 

[Jeffcb]

1.025

 

[T-J]

Is using the term salinity referring to a specific measurement type? I've always used the term salinity generically wether I am measuring in specific gravity, PSU or PPT.

Salinity is measured in PPT, and measures the amount of salt (ie 35ppt salinity = 35 parts of salt per 1000 parts of water)

Specific gravity is its own measurement (ie 1.025 SG), and measures density.

Both measurements are affected by temperature.

 

[Blenny1988]

thanks guys for your replies and yes that is a bit confusing when i look through my refractormeter on the left hand side i have D 20
_
20

With numbers from 1.000 upto 1.070

on the right hand side i have % with numbers from 0 to 100 i always use the left hand side am i maybe going wrong? thanks guys

 

[Jeffcb]

thanks guys for your replies and yes that is a bit confusing when i look through my refractormeter on the left hand side i have D 20
_
20

With numbers from 1.000 upto 1.070

on the right hand side i have % with numbers from 0 to 100 i always use the left hand side am i maybe going wrong? thanks guys

Just two different ways of measuring salt.

 

[Blenny1988]

Just two different ways of measuring salt.

so having my salt at 1.025 is fine then? thanks

 

[Gtinnel]

so having my salt at 1.025 is fine then? thanks

Yes 1.025 isn't going to be an issue

 

[Blenny1988]

thank you and phheeeeewwww was panicking then lol

 

[T-J]

so having my salt at 1.025 is fine then? thanks

Yes.
At 25.6 Celsius, 1.025sg = 35.4ppt

 

[Blenny1988]

i suppose i am still very much a newb to this and so panick at the slightest thing

 

[Gtinnel]

i suppose i am still very much a newb to this and so panick at the slightest thing

Anytime you question anything about your parameters this forum is a great resource to get answers. Most of the time someone will reply quickly.

Also with many things in this hobby having a stable value is more important than what the value is. There are certain parameters that have a pretty broad range of acceptable limits, but they need to stay consistent.

 

[takitaj]

Here's a great salinity calculator. Enter a value on the left based on the type in the drop-down box and on the right it will show all the equivalent values.

Salinity Conversion Calculator (hamzasreef.com)

 

[Azedenkae]

hey guys

Just a quick question and sorry if this subject has been covered already before!!!!

But i know that the target for a reef tank salinity is 1.025

Which is where i keep my tank at but my questions is where do you guys keep your salinity at? do you keep it at at the same or higher lower? if so have you always kept it at the same or played with abit ect just out of interest guys!!!

Thanks in advance guys

My current 'main' tank is kept between 1.021 and 1.022. Which is kinda low, but the corals and everything are doing well, so I don't want to touch it. My currently cycling tank is set to 1.025.

Pollution in Tropical Aquatic Systems

We have identified a need to draw together knowledge of physiochemical and biological aspects of pollution in tropical aquatic systems. This book results from this and we hope will assist in providing management strategies to protect these systems from pollution effects. In organising the book...

books.google.com

Fyi, I found this book that says "corals and other reef organisms can live in normal salinities as low as 25%o and as high as 45%o, even though most coral reefs occur in a more moderate salinity environment'. Which corresponds to 1.0188 to 1.034 sg. Not an invitation to just keep corals at any whatever salinity. XD But just a pretty interesting observation they had. Also, it probably varies from species to species, etc. too.

 

[Blenny1988]

thanks guys and yes i feel i have settled into the forum pretty well (only joined yesterday) and in all honesty have found everyone warm and very helpful i have tested my tank today and will post test results in due coarse

 

[Blenny1988]

My current 'main' tank is kept between 1.021 and 1.022. Which is kinda low, but the corals and everything are doing well, so I don't want to touch it. My currently cycling tank is set to 1.025.

Pollution in Tropical Aquatic Systems

We have identified a need to draw together knowledge of physiochemical and biological aspects of pollution in tropical aquatic systems. This book results from this and we hope will assist in providing management strategies to protect these systems from pollution effects. In organising the book...

books.google.com

Fyi, I found this book that says "corals and other reef organisms can live in normal salinities as low as 25%o and as high as 45%o, even though most coral reefs occur in a more moderate salinity environment'. Which corresponds to 1.0188 to 1.034 sg. Not an invitation to just keep corals at any whatever salinity. XD But just a pretty interesting observation they had. Also, it probably varies from species to species, etc. too.

a very interesting observation

 

[Blenny1988]

Here's a great salinity calculator. Enter a value on the left based on the type in the drop-down box and on the right it will show all the equivalent values.

Salinity Conversion Calculator (hamzasreef.com)

And thank you have now saved it into my favorites