Adding Salt

Neil H

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Hi Guys,

I siliconed my overflow box in last night .... two questions ...

1. When is it "safe" to start adding Water ?
2. How do I add the salt?,do i measure the tank and sump volume calculate the salt required based on the makers instructions and then just sommer dump it all in at once? Is there some sort of cunning protocol for doing this.... bearing in mind this is a first fill, not a top up/replacement? Tank volume is est 550L

Thanks
 

Mekaeel

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1.allow to dry for 24-48 hours.
2.fill up you entire tank with RO water.switch on all pumps.make sure there is no substrate or LR.then add in salt and measure using a refractrometer until you get a SG of 1.025. test your salinity after every few hours to make sure all salt is dissolved.
 
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Alfie

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Hi Guys,

I siliconed my overflow box in last night .... two questions ...

1. When is it "safe" to start adding Water ?
Give it about 3 days to cure.
2. How do I add the salt?,do i measure the tank and sump volume calculate the salt required based on the makers instructions and then just sommer dump it all in at once? Is there some sort of cunning protocol for doing this.... bearing in mind this is a first fill, not a top up/replacement? Tank volume is est 550L

Thanks
You should find out (depending on the make of salt) how many grams you need per litre of water to to have a salinity of 1024 and then add accordingly.
 

Alfie

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Sorry forgot to mention that you should mix your salt first before adding to the tank to get it to dissolve.
 

Rory

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Mix it with what Alfie? This is a first fill so I don't see why you can't "mix" it in the tank.

I would obviously let the tank silicone etc cure and maybe freshwater test the tank.

Fill the tank with RO, turn on the pumps and heaters in order to heat the water and oxygenate it. Then add the required amount of salt and leave it for a few days. Then only add live rock.

Mekaeel you can't put the live rock in RO water, will then be dead rock.
 

Alan

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If you not using live sand i would add the gravel first, RO water, salt and let it all mix in then add your live sand, live rock wait for the cycle.
 

Ocean

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I would let the SG start at 1.022 then slowly move up my reason being that the higher the SG the less the oxygen it can hold then slowly move up to 1.025( i would add FW mollies to the tank to push the cycle then remove when you get fish)
 

Neil H

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Thanks for the info guys!!

Alan, it is a totally new system, but the sump has a DSB compartment, i have play sand i will be putting in there when i start the first fill on Sunday !

My LFS suggests putting in uncured / partilly cured LR to start a system? is this better than going for cured LR?
 

Alan

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yeah no problem, the rock will be cured by the time the system has cycled and with uncured rock you tend to get the cycle going very quickly because of all the die off on the rock.
 

Rory

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Yes run your skimmer as well. It will help oxygenate the water.
 

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