Since I've setup my tank I've done weekly water changes (Every Sunday Night). I have a 55Gal FW
no live plants. I take out about 1/4 to 1/3 of the water and then replace it with tap water.
I noticed after water changes that my pH levels would spike up about .5 I tested a gallon of the water today before adding it my my tank and it was so dark blue it must have been over 8.0. I decided to add a product I have to reduce pH called Wardleys Sodium Biphoshate. This keep my pH at a neutral # of 7.0.
With all that said I was wondering if that is a safe way to do it or is there a better safer way to balance out my harsh tap water. I'm still very much a rookie but I'm trying my darnedest to do things the "right" or better ways.
Any input is greatly helpful to this fish tank newbie!!