SG dropped

Can coral's survive and thrive in an SG of 1.022 or does it have to be higher?
Danny

 

prob better higher

 

yes they can survive probably from 1.018-1.035, thats just my guess from my time in the hobby as i have seen some wacky salinities.

note: survive doesnt indicate being healthy, 1.025 is probably optimum for most corals

 

I agree with sostoudt, if done gradually, they can adjust to a wider range of salinity then you think. But they may not thrive. Natural sea water is 1.026.

 

agreed higher is better
I have kept corals in 1.022 many years ago - when Hypo salinity was the most often advised route for parasite treatments. Because you should only lower SG by 1 part per day if your tank was at 1.026 it took 8 days to get down to 1.018 ( the then target for hyposalinity, I realise even that has changed these days)

if your tank was maintained at 1.022 it only took 4 days to reach the target
many fish may have died in an 8 day period while lowering SG - so by halving the time taken survival chances where said to be improved

as stated - this is a blast from the past account , Im not suggesting this at all as it may be against modern thinking/ practices


Steve

 

I was thinking of adding a mated pair of clown fish and no more. So I hear that the chance of fish getting diseases are lower in a 1.022 environment, I also want soft coral's and when I get better lighting then maybe a few other types. I heard the Ocean was between 1.028 and 1.030 but it is constantly changing and the never see the same water twice. What would be the best setting for them both overall? I have been at about 1.024 for a long time now. I am not changing I am just wondering about illnesses and SG.

 

Hi Danny
again old school from me Im afraid - 1.026 was always given as NSW natural sea water) level, so thats what I work to maintain in my tank

 

Anyone have their salinity lower over the course of a few weeks ?? I swear mine went from a 1.024 to 1.022 in 2 weeks...not salt creep...skimming to heavy maybe ???

Salinity drives me crazy !!

 

I got the 1.028 and 1.030 from a thread from my past.

 

No, the ocean is really 1.026 as stated earlier but this is just an average. It can be as high as 1.030 and then a rainstorm comes and drops to 1.023 for example.

Keeping fish at 1.022 doesn't prevent any disease either. That's a myth that has been spread for years. Fish actually have to work HARDER to maintain osmotic balance at lower specific gravities. Additionally, you're not doing anything to ich or velvet or flukes or any parasite at 1.022......you need to do real hyposalinity to affect them.