I've been struggling keeping my pH up in my 29 gallon BC. I end up around 7.8 every couple days after adding "eight five". I do weekly water changes and my other parameters are all good. LFS guy said its because I have 3 cats and 4 people in my house with the air conditioner on and I need a scrubber. I bought a basic BRS scrubber and media, but I can't figure out how to hook it up to my BC coralife skimmer. Please be gentle, I'm only 6+ months in and I try and do my research before doing anything. Pic of the scrubber I purchased attached.