Never heard of JPL substrate except JBL. All substrate should work well but will not last forever (If you wish to go for looks, ADA and Gex looks good). You will still need to dose through the water column in the end though. Consider a low light tank whichever method you do (CO2 or non-CO2) as it will give you room for error and much stable tank.
Regards,
Peter Gwee
Bookmarks