I have a problem with the level of saltiness

[fran-cyber]

when I turn on the filter, the salinity level will rise, and when I turn off the filter, the salinity level is normal
what's the problem?
my tank spec:
capacity: 49 liters
pump: 600 liters per hour

 

[andiesreef]

get something other than a swing arm. try a refractometer as they give much more accurate results

 

[JoeReefinGood]

Any chance the flow can be pushing the swing arm higher? Have you tried testing outside of the tank with the swing arm?

 

[workhz]

Aren’t you supposed to read it outside the tank?

 

[fran-cyber]

Any chance the flow can be pushing the swing arm higher? Have you tried testing outside of the tank with the swing arm?

Tried it, the result is the same

 

[fran-cyber]

Aren’t you supposed to read it outside the tank?

I have tried it outside the tank, the result is the same

 

[workhz]

What do you mean results are the same?

So you turn off the pump. Dip it. Remove it. Look at the level. Are you saying if you repeat the process with the pump on that the level is different?

 

[IanK]

For a tank with corals, neither level is good

 

[workhz]

Also tap it to make sure no air bubbles are present.

 

[cmoore806]

A refractometer at the very least will give you peace of mind. This swing arm has no business in reefing and shouldn’t be sold anymore

 

[fran-cyber]

What do you mean results are the same?

So you turn off the pump. Dip it. Remove it. Look at the level. Are you saying if you repeat the process with the pump on that the level is different?

yes the result is different, turn off the pump and turn on the pump. the result if you turn off the pump the salinity level is normal

 

[workhz]

Gotta get the air bubbles out.

 

[fran-cyber]

A refractometer at the very least will give you peace of mind. This swing arm has no business in reefing and shouldn’t be sold anymore

let me buy first

 

[JoeReefinGood]

I'm not an expert by any means but I'm sure the swing arm is the issue and not the salinity itself.

 

[fran-cyber]

I'm not an expert by any means but I'm sure the swing arm is the issue and not the salinity itself.

what with refractometer more accurate results?

 

[JoeReefinGood]

Yeah a refractometer would be more accurate and would help you adjust your salinity if/when appropriate.

 

[fran-cyber]

Yeah a refractometer would be more accurate and would help you adjust your salinity if/when appropriate.

okay I will rob first at the aquarium shop
thank you all for the answer

 

[Fishingandreefing]

Any chance the flow can be pushing the swing arm higher? Have you tried testing outside of the tank with the swing arm?

Exactly what I was thinking.