topping off tank question

[lkb3493]

ok- this may sound totally stupid :notsure: to most of you but here goes anyways...
When I need to top off my tank because the salinity has gone up slightly how do I know how much to add to bring it back to the correct level that I try to keep it at? Is there a certain formula like 1 gallon= would go from 1.026 to 1.025? I know it is stressful on the fish to have the levels change alot so I thought I would ask...This is the first time I have had to top off since adding my first fish. Thanks in advance and sorry to sound like an idiot. :thinking:

 

[cain420]

just add the same amount that evaportated.. fill it back up to the same level it was at.
well, that is assuming that u havent let half of it evaportate, lol..

 

[jumpfrog]

It's best to top off often if you're losing water through evaporation. You're better off topping of 1/2 to 1 gallon than waiting until you need 2 or 3. With small additions you should affect your salinity too much and any change will be small.

 

[zman1]

Just add water to replace what has evaporated. You will need to decide if it dictates daily or weekly adds. Just remember water evaporates and salt doesn't....
I think what JumpFrog meant to say was: "With small additions you shouldn't affect your salinity too much and any change will be small."
I agree with that 100%

 

[jumpfrog]

Thanks for correcting the typo. Fat finger Friday

 

[lkb3493]

Thanks for all of the advice. I guess I am just being too careful :notsure: I added a gallon and it is back to the level I normally maintain...

 

[salty cheese]

Just so you are aware, ALL of the inhabitants in you tank are sensitive to changes in salinity and you should do your best to maintain a constant level or you will cause unneeded stress or worse.

 

[cain420]

yea i use an airline to add water to my sump... nice n slow... i dont drip, the hose slows it down enough...