Simple question

[HaiFish]

What is a good PPM for a saltwater fish tank?

 

[Sharkbait19]

Do you mean salinity? Generally you want it at a specific gravity of 1.025, which is about 33 ppt (parts per thousand).
You usually don’t see salinity in ppm.

 

[KrisReef]

According to the USGS

• Pacific Water is considered freshwater when salinity is less than 1,000 ppm (parts per million), or 1 ppth (parts per thousand). Water is considered very high salinity at 10,000 ppm – 35,000 ppm (10 – 35 ppth), with ocean water usually at about 35,000 ppm (35 ppth).

 

[HaiFish]

Do you mean salinity? Generally you want it at a specific gravity of 1.025, which is about 33 ppt (parts per thousand).
You usually don’t see salinity in ppm.

Thats wha i meant thank you

 

[HaiFish]

Do you mean salinity? Generally you want it at a specific gravity of 1.025, which is about 33 ppt (parts per thousand).
You usually don’t see salinity in ppm.

My tank is at 32 PPT (Recorded with a cheap tester) Is this okay?

 

[randomfishdude]

Not very simple.

 

[HaiFish]

Not very simple.

Sorry you feel that way. Feel free to teach me all the ins and outs of PPT in saltwater fish tanks.

 

[Sharkbait19]

My tank is at 32 PPT (Recorded with a cheap tester) Is this okay?

I’d try to bring it up a bit, but that will be okay (I usually correct by adding a bit more salt during a water change). That difference shouldn’t be an issue, though corals do like it on the higher end.

 

[randomfishdude]

Sorry you feel that way. Feel free to teach me all the ins and outs of PPT in saltwater fish tanks.

I was joking lol.
I keep mine at 1.026 so I think that's 35 or 36 put.
I keep mine at whatever the ocean ism

 

[HaiFish]

I’d try to bring it up a bit, but that will be okay (I usually correct by adding a bit more salt during a water change). That difference shouldn’t be an issue, though corals do like it on the higher end.

Sounds good. I don't have salt mix because I get saltwater directly from an aquarium shop and I am not sure if my ppt measurement is accurate.

 

[Sharkbait19]

Sounds good. I don't have salt mix because I get saltwater directly from an aquarium shop and I am not sure if my ppt measurement is accurate.

I use a swing arm hydrometer - I have a refractometer but am frankly too lazy to learn to properly use it. I’ve found my swing arm to be rather accurate.
Assuming you’re buying your corals from that shop, it should match whatever they are keeping their stuff in.
Presumably it will be sitting around 1.025.

 

[HaiFish]

I use a swing arm hydrometer - I have a refractometer but am frankly too lazy to learn to properly use it. I’ve found my swing arm to be rather accurate.
Assuming you’re buying your corals from that shop, it should match whatever they are keeping their stuff in.
Presumably it will be sitting around 1.025.

Makes perfect sense! Thanks!