Do both
Do both
I am in the process of curing my dry rocks as well. I have been Acid bath in the past which works well. However, this time I try both Acid and bleach.
I put all the rocks in a brute container with tap water and
let it seat for about two weeks.
after that I Acid bath, rinse and than bleach for about one week.
after that rinse and pressure wash ( I will not skip pressure wash)
I can't believe how much stuffs and dirt still coming out from pressure wash.
let the rock air dry and put all the rock back into a clean brute container.
at this time you want to use RODI water with powerhead.
Just to make sure all the bleach are no longer in the rocks, I use dechlorinate solution several times as you change out RODI water.
Once you are happy with the results, the rocks are ready for salt water and seeding of beneficial bacteria and live sand from a clean and well established tank.
this last step can take up to a month or so. This whole process should take about 2-3 months. I know that this seems long but not having to deal with algae bloom or the headache of the new tank syndrome is well worth it, IMO.
Also, BRS has a great video on youtube on how to curling dry rock using bleach and acid bath.
Good luck
Ehtan M