If you are looking for a simple solution. Try looking at the CaribSea substrate mixes. I am using a really small granule and have had enough luck to not be concerned.
*I have a link but I am not allowed to post it*!!!! Argh...
No clue what your access level is but these are designed to retain high pH. This substrate alone buffers my pH about one point. So if you normal tap water is really acidic it will help but your probably going to have to add a buffer or crushed coral regardless.
*Can't post my image either*
These guys are digging it!




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