I just set up a planted tank and I'm having a bit of an issue with LOW (oops) pH.
10 gallon tank
6 L of UNS black extra fine controsoil
wood and dragon stones
Cascade 100 HOB
with the stock sponge but original filter discarded in favor of polish pad and clay rings
My water comes out of the tap at about 7.8 but after a few days my tank water is down to about 6.0. I've only changed the water once so far because I thought I'd read the controsoil doesn't require the frequent initial water changes of many other soils. Is that maybe the whole problem, that I need to do more water changes? Should I add crushed coral somewhere or baking soda?
I really want to keep shrimp so I've got to get the pH up a bit somehow.
Any help would be greatly appreciated.