Salinity

[rocknurworld2006]

what is ok range? at 25degrees

 

[SkiFletch]

33-35ppt, 1.023-1.026sg for most reef setups. Fish only ones can do ok down to like 31ppt or 1.019sg

 

[rocknurworld2006]

33-35ppt, 1.023-1.026sg for most reef setups. Fish only ones can do ok down to like 31ppt or 1.019sg

ok ive tested mine its been set up for 2 days am awaiting to get live rock

its at 1.025, so thats fine yes?

 

[GShorty1981]

Yes but keep a eye on it in a small tank as it will rise rapidly with evaporation.

 

[rocknurworld2006]

Yes but keep a eye on it in a small tank as it will rise rapidly with evaporation.

thanks, and it should ust be topped up with ro water and not ro salted water??

 

[Crazy fishes]

Yes but keep a eye on it in a small tank as it will rise rapidly with evaporation.

thanks, and it should ust be topped up with ro water and not ro salted water??

That is correct, top-up with RO not salt water. Are you using a refractometer or swing are hydrometer?? Anyone know good quality refractometer that they would recommend? I think my swing arm is on the way out so refractometer are a more precise means to an end .....
It is really interesting that everyone goes on about topping up but in all the time mine has been running I have not had to top-up once! It just goes to show the difference a tight fitting lid can make on evaporation.

Regards

 

[rocknurworld2006]

Yes but keep a eye on it in a small tank as it will rise rapidly with evaporation.

thanks, and it should ust be topped up with ro water and not ro salted water??

That is correct, top-up with RO not salt water. Are you using a refractometer or swing are hydrometer?? Anyone know good quality refractometer that they would recommend? I think my swing arm is on the way out so refractometer are a more precise means to an end .....
It is really interesting that everyone goes on about topping up but in all the time mine has been running I have not had to top-up once! It just goes to show the difference a tight fitting lid can make on evaporation.

Regards

hi i use a refractometer

 

[kj23502]

I got a great refractometer off ebay for $35. He sells all over the world and has great reputation as power seller. Maybe something to look at

That was $35 including shipping.

I've heard swing arms can really suck. There are more variables. If you drop it it'll mess w/the arm. They get notoriously inaccurate over time. At least you can recalibrate a refractometer if you should need to.