Whats your sg level?

dots

Premium Member
Curious, I just read a thread about a guy who keeps his at 1.026-1.027sg, and made me wonder what people locally were keeping thiers at. Because temp affects the sg level, please include what your temp is on average and what you use to measure your sg with.
Thanks.....

Me: 1.023, 80 degrees F, refractometer.

Why 1.023? I keep all of my params in the middle of the "recommended" levels in case there is a problem I have some wiggle room. I set my sg when the water is at optimum level and because I don't have an auto top off and refill in the evening, over the course of the day or at the very worst next day if I am lazy,(don't have water because I don't have an RO/DI unit either), it doesn't go above 1.025.....which I heard is not very good for the SPS varietal.

H'bout you?

BTW, anyone have that sg and temperature correction chart?
 
For those pushing the NSW level, how do you compensate or account for daily evaporation, at your optimum level it may be at 1.025, but based on your tank size it could shift to 1.026 or higher. Is this a concern to you? What do you consider too high of a sg level to be then? Keeping it at 1.025 is able to be done with an auto-topoff, but for those of us not able to (apartment), have you considered this daily swing.........when setting your sg?

I suppose, I will let my water go to my "gotta have water now" level and measure that it really shifts that much.
 
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I thought the sg measurement by a self-correct refractometer is not temperature dependent, in another word if I tested my water at 1.025 or 35ppt at 80F, then when my temp changes to 75F, my sg is still 1.025 or 35ppt. Am I wrong on this?

Anyhow my current sg is 1.009 at 80F doing hypo treatment, normally 1.025 and 80F, as high as 87F in summer since I don't use a chiller and have very little evaporation. Mine is FOWLR.
 
I admittedly let mine get up to 1.027 at times, but only my clams have a reaction to that. Everything is fine.

The average of the world's oceans is actually 35ppt, which converts to 1.026. Some areas, like the Red Sea, have extreme SG and temp fluctuations, and will get up to 1.030. This is why the fish from there are so damn tough. Hopefully one day, we'll be able to get coral from there.
 
<a href=showthread.php?s=&postid=9200809#post9200809 target=_blank>Originally posted</a> by dots
For those pushing the NSW level, how do you compensate or account for daily evaporation, at your optimum level it may be at 1.025, but based on your tank size it could shift to 1.026 or higher. Is this a concern to you? What do you consider too high of a sg level to be then? Keeping it at 1.025 is able to be done with an auto-topoff, but for those of us not able to (apartment), have you considered this daily swing.........when setting your sg?

I suppose, I will let my water go to my "gotta have water now" level and measure that it really shifts that much.

I don't have an auto topoff which i would recomend, but i always have fresh water avaible and keep and eye on my levels throughout the day. When ever i can and just add when needed. My 280 drops about 2-3 gallons a day which dosent seem to do much and my 50qt maybe half a gallon day at most which dosent do much only during the summer if seems to evap more and have some affect which i set my sg a little lower around 1.023-1.024 incase im not around..
 
1x Mechanical float valve - $20
1x cheap aqualifter - $20
1x 5 gallon bucket - $3
5' 3/8" tubing - $1

Peace of mind with a DIY top-off system - priceless!
 
1.024-1.025 w/ refractometer. Keep it constantly there with a $4 float switch, some spare cords, and a $5 radio shack relay for an ATO.
 
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