What Salinity Is More Harmful To Corals?

[akau]

It’s not the level that matters as much as the flux, flux creates instability in your chemistry which corals will not like much.
Haven’t seen much on the lower end but some super tanks at 1.027 and 1.028, however, the flux was zero always.

Agree, I can't imagine living without an auto top off. I have a reef breeders one and it was super easy to set up and works really well.

 

[akau]

I had a vacation planned to visit my old buddy Tangaroa in Rarotonga when your island closed for COVID-19. We had rented a cottage on the beach and I was eager to see the lagoon again but that option was lost.
I want a clam, can you help me? Or a blue starfish, ect.

Sorry buddy, no planning on exporting any livestock from here. Come holiday here if you want to see them!

 

[Thor2j]

1.027 and above no good

So just curious. 35 ppt is the recommended level by most. That translates to 1.0264 and you are saying 1.027

1.024-1.025 has been industry standard for decades. Ocean salinity is 1.025 and considered universal number
1.027 is out of norm and reduces dissolved oxygen however high salinity often reduces heat stress if coral although high temperature should be controlled

Industry standsrd for decades, oh like 0 phosphates and 0 nitrates were thr standard for decades. Glad to show you my tank thriving at 1.027 for many years.

 

[WWC Verified Sponsor]

We run our tanks around 1.024-1.026

-Keith

 

[reeftankdude]

Need something like what is in the image, buy I have a rimmed tank. Thanks all

 

[akau]

Need something like what is in the image, buy I have a rimmed tank. Thanks all

could easily modify by adding hoses to those two tubes

 

[Rmckoy]

Which salinity is more harmful to corals 1.020 to 1.025 or 1.025 to 1.030? I do not have a drip system. Should I set my salinity at 1.025 and let it go up to 1.030 or set it at 1.020 and let it go up to 1.025? Been looking for a simple inexpensive drip system, but cant find one. Thanks all

Why would you want it to go up to 1.030

ideally 1.026 with little to no fluctuations

 

[reeftankdude]

Why would you want it to go up to 1.030

ideally 1.026 with little to no fluctuations

I would never deliberately let it go up that high, but it could happen.

 

[PeterReefer]

1.023 with the exception of hyposalinity for treatment of disease which is 1.009

I had a problem with my skimmer creating a syphon with my ATO and the salinity is at 1.018
I didn’t think that the salinity would drop that drastically.

 

[Rmckoy]

I had a problem with my skimmer creating a syphon with my ATO and the salinity is at 1.018
I didn’t think that the salinity would drop that drastically.

If I run my skimmer wetter than normal it will cause the ato to run more lowering the salinity .
Never below 1.023 but it’s also 230 gal plus sump