That should be fine...you can make it 1.025 if you want...you just have to be vigilant in keeping the tank topped off. If you go away or spend the night away from home. Someone will have to be there to add that fresh water. BTW..you should use the RO
water to top off as well. Poland Spring water, while pure enough to drink, is prob not pure enough for SW
. If there are any traces of Phos, Nitrate, Copper...you will eventually run into issues.
And Yes..You should let your fresh SW
sit for 24 hours with a power head and heater running in the bucket.