topping off a 20 gal (rookie question)

[saxerphoner]

I need to top off my 20 gal for the first time. My SG is stable at 1.022 and I was curious if I should mix some salt into my water I was planning to top it off with. It prolly needs less than a gallon. Any suggestions or advice would be great!!!

Thanks!

[Billybeau1]

Top off with fresh water only. The salt does not evaporate very much.

Only use salt water when doing water changes. :)

[saxerphoner]

Thanks!! just wanted to make sure....

Will this make my SG drop to below 1.022 though?

[Billybeau1]

:thumbsup:

No it should not. As long as you do water changes occasionaly

Actually, to tell you the truth, if I go awhile without waterchanges, my sg actually creeps up a little. Dont know why ?

One more thing. If you have fish only. 1.022 is fine and in fact where I keep my FO tank, but if you have some corals, I would bump it up a little. :)

[saxerphoner]

I have some time before I get softies but I'll keep that in mind.

Thanks!!