water evaporating TOO fast

[raidersfan3ooo]

hey guys so i know about ATO systems but am not looking to get one for my QT tank (10 gallon)

problem is every 24 hours my reading goes from 1.022 to 1.025!

so i fix it every night back to 1.022, is this gonna stress the fish significantly??

thanks

[Curious George]

The temperature of my room is 75 and I keep my tank at 76. My heater doesn't work hard and the evaporation is minimal. If the tank temp is kept quite a bit warmer than the ambient room temp, you get more evaporation.

That is a pretty big swing. I don't know what that will do to fish over a long period of time.

[papagimp]

how much top off are you having to use on the 10g each day?

[raidersfan3ooo]

well im starting to calculate how much right now, lol false alarm though my hydrometer had bubbles on the swing, hate that thing

looks like in a 24 hour period it only raises by 0.001, so not too bad im thinking a quarter of a gallon a day evaporates but well see

[papagimp]

I'm sure you'll hear it plenty, invest in a refractometer when you can. very worth it.

just for reference, I run a 58g with 20g sump, temp sits around 82-83, ambient room temp sits as cold as my two window a/c units can manage (probably 70-75ish most the time), loads of surface agitation in both sump and the display. I may evap roughly 5g per week. sometimes slightly more but not by much.