Salinity question?

[olie]

what to you guys keep your Salinity at?

 

[reefergeorge]

1.025

 

[phenom5]

35ppt

 

[jamest0o0]

1.026 if it's a reef, a little lower if it is a FOWLR.

 

[olie]

why do you keep the Salinity at 1.025 or 1.026 if it a reeftank?

 

[DKAudio]

<a href=showthread.php?s=&postid=13298678#post13298678 target=_blank>Originally posted</a> by jamest0o0
1.026 if it's a reef, a little lower if it is a FOWLR.

What level is good for a FOWLR tank?

 

[Vauche]

My understanding is for a FOWLR you can go 1.021-1.026 whichever you prefer. Some like it lower because the ich parasite doesn't do very well (less virulent) in lower salinity water.

The reason for 1.025-1.026 in a reef is because that is what inverts and corals need to survive. These 2 groups can't osmoregulate regulate like fish can and lower can be fatal.

 

[Almon]

1.024 - 1.025

 

[SCIFI_3D_zoo]

http://www.zeovit.com/forums/showthread.php?t=13407

This is an example of a lower 1.024 one. I think Randy recommends 1.025.

 

[Toddrtrex]

<a href=showthread.php?s=&postid=13302804#post13302804 target=_blank>Originally posted</a> by Vauche
My understanding is for a FOWLR you can go 1.021-1.026 whichever you prefer. Some like it lower because the ich parasite doesn't do very well (less virulent) in lower salinity water.

The reason for 1.025-1.026 in a reef is because that is what inverts and corals need to survive. These 2 groups can't osmoregulate regulate like fish can and lower can be fatal.

To have any real effect on ick the salinity would need to be at 1.009.

There is no reason not to keep a FOWLR at 1.026, that is the level that the fish would be found at naturally.

 

[Vauche]

<a href=showthread.php?s=&postid=13303015#post13303015 target=_blank>Originally posted</a> by Toddrtrex
To have any real effect on ick the salinity would need to be at 1.009.

Yes to have any affect against an ich infestation you need a salinity at 1.009 to kill the ich parasite. To decrease virulence or prevalence of the parasite you need not go so low. This is why many LFS have tanks at lower salinities than one would run a home aquarium. And yes it saves money on salt too, I know.

 

[tmz]

<a href=showthread.php?s=&postid=13304008#post13304008 target=_blank>Originally posted</a> by Vauche
Yes to have any affect against an ich infestation you need a salinity at 1.009 to kill the ich parasite. To decrease virulence or prevalence of the parasite you need not go so low. This is why many LFS have tanks at lower salinities than one would run a home aquarium. And yes it saves money on salt too, I know.

Natural Sea water is 1.0264. I don't know what lowered level will inhibit ich(crpytocaryon irritans) but suspect you would have tyo be in the teens somewhere. But anything outside a reasonalbe range close to what the fish has evolved to would , in my opinion, have some effects on the animal's metabolic functions and it's ability to maintain homeostasis long term. For shorter periods of time ( several weeks or so ) lowered salinity may actually be easier on a fish since it's internal salinity is 1.008 and it would have to process less urine and drink less in a hyposaline environment. But long term it is built to function in a range near 1.0264.

 

[cloak]

Whatever this says.

No problem.

 

[Michael]

1.025-26 is fine, its what they get in NSW, 1.0264 is that level so as near to that the better surely

 

[otrlynn]

Before I bought a refractometer and was using a swing arm hydrometer, I used to aim for 1.023. My reasoning was that a point or two off either way would not be harmful to the inhabitants. But--I would suggest the accuracy of a refractometer.

 

[rogergolf66]

<a href=showthread.php?s=&postid=13298678#post13298678 target=_blank>Originally posted</a> by jamest0o0
1.026 if it's a reef, a little lower if it is a FOWLR.

+1