lowest specific gravity for live rock and inverts?

[canman]

I'm bringing my specific gravity up from hypo, but I'm leaving for the beach tommorrow. I have my s.g. up to 1.020. I usually have it at 1.024-025. I don't won't my live rock and inverts to stay in the rubbermaid container while i'm goone due to a lot of evaporation. Is this level safe?

 

[zippgirl]

Before I had corals, I kept my FOWLR between 1.020-1.022. So my opinion it should be fine, mine was. I can only go based on what has worked for me in the past, hope it helps.

 

[kellenr]

Originally Posted by canman
http:///forum/post/2662515
I'm bringing my specific gravity up from hypo, but I'm leaving for the beach tommorrow. I have my s.g. up to 1.020. I usually have it at 1.024-025. I don't won't my live rock and inverts to stay in the rubbermaid container while i'm goone due to a lot of evaporation. Is this level safe?
Well evaporation only affects the water molecules (H20) it doesn't affect the salt (NaCl). So really 'only water' is evaporating, not the salt. Therefore it shouldn't change your specific gravity, unless lots of water evaporates then it'll actually bring your specific gravity UP. Think about it; same amount of salt but in much less water = higher salinity of the water. Thats why you top-off with freshwater only, not saltwater. If you're just going to the beach for the day or so you'll be fine, nothing to worry about.

 

[jonp]

When starting up my tank, I had the SG at 1.018 and everything still lived.

 

[canman]

thanks for the help and i'm gonna be goone for a week.

 

[sepulatian]

Originally Posted by canman
http:///forum/post/2662515
I'm bringing my specific gravity up from hypo, but I'm leaving for the beach tommorrow. I have my s.g. up to 1.020. I usually have it at 1.024-025. I don't won't my live rock and inverts to stay in the rubbermaid container while i'm goone due to a lot of evaporation. Is this level safe?
What inverts do you have? If you have sensitive inverts then I would leave them in the tub with an auto top off. 1.020 is low. The rock might be alright. Other inverts will not be.