Specific gravity too low for sps

An ngo · Apr 30, 2018

Randy Holmes-Farley said:
You cannot mix them.

Thanks Randy. Good to know that info

Brew12 · May 1, 2018

An ngo said:
Does anyone know how to raise specific gravity up. I just check my in few day and noticed it pretty low for my coral (1.021-1.022). I would raise it up to 1.025. I try to do water change with sg 1.026 but my DT sg still stay at 1.022. What should i do to raise it. ??

If you want to raise your salinity to 1.025 you need to make your new water at a higher salinity.

If you do a 10% water change I would go as high as 1.034
If you do a 25% water change I would go around 1.028

An ngo · May 1, 2018

Brew12 said:
If you want to raise your salinity to 1.025 you need to make your new water at a higher salinity.

If you do a 10% water change I would go as high as 1.034
If you do a 25% water change I would go around 1.028

That would be a great idea too, but does rapid change effect my sps???

Brew12 · May 1, 2018

An ngo said:
That would be a great idea too, but does rapid change effect my sps???

These wouldn't be rapid changes at all. In fact, they might be a little small.

Starting at 1.021 and doing a 10% water change with 1.034 would only get you to 1.0223.
Starting at 1.021 and doing a 25% water change with 1.028 would only get you to 1.0228

So, you may want to consider doing the changes with even higher salinity water.

Fudsey · May 1, 2018

@Brew12 I think you meant "1.o223" not 2.0223.....

;Hilarious ;Hilarious ;Hilarious

NY_Caveman · May 1, 2018

Just a quick question, if I understand correctly, you are saying you salinity is always low over time? If you are running an ATO, it is possible the ATO sensor level is not set correctly? The way I read this, your ATO is maintaining a low salinity. Maybe I am way off. I guess my real question is why is the salinity low?

An ngo · May 1, 2018

NY_Caveman said:
Just a quick question, if I understand correctly, you are saying you salinity is always low over time? If you are running an ATO, it is possible the ATO sensor level is not set correctly? The way I read this, your ATO is maintaining a low salinity. Maybe I am way off. I guess my real question is why is the salinity low?

My ATO pump broke and doesn't work few days. At that time, I start to use a cup and dose by hand when the water level go down. Maybe i dose over the normal water level cause my salinity gets low

An ngo · May 1, 2018

Brew12 said:
These wouldn't be rapid changes at all. In fact, they might be a little small.

Starting at 1.021 and doing a 10% water change with 1.034 would only get you to 2.0223.
Starting at 1.021 and doing a 25% water change with 1.028 would only get you to 1.0228

So, you may want to consider doing the changes with even higher salinity water.

You mean 1.0223 not 1.023
Right?

Brew12 · May 1, 2018

Fudsey said:
@Brew12 I think you meant "1.o223" not 2.0223.....

;Hilarious ;Hilarious ;Hilarious

Hush you! I'll fix it.

Brew12 · May 1, 2018

An ngo said:
You mean 1.0223 not 1.023
Right?

It should have been 1.0223, so it is a very small increase. Slow changes are best.

Crimson · May 1, 2018

Don't be in a rush to raise it. That may do more harm then good. The main reason why many keep it at 1.025/1.026 is because of the elevated levels of Ca,Mg and ALK. If you want just dose those to acceptable levels and slowly raise your SG.

wesman42 · May 1, 2018

An ngo said:
My ATO pump broke and doesn't work few days. At that time, I start to use a cup and dose by hand when the water level go down. Maybe i dose over the normal water level cause my salinity gets low

If the ATO pump is what's holding you back from doing it at a stable rate, then you could always get one from ebay (12v) and splice it in to your current setup!