Fox Farm Cultivation Nation PH Down - 1 Qt.

Works great

It’s a good citric acid based ph down. It is on the mild side in terms of concentration. I have hard water with a high ph and it takes quite a bit of it get a drop in ph.

A little goes a long way! This stuff is strong so be cautious!

I can't say that it doesn't work because it does. It will lower the Ph level. The problem I seem to have is that It will not hold it for very long. I can add a couple ml of this stuff to the DWC and it will be back up after a couple of hours. Is that normal? I don't know but it really annoying. Going to grab another pH down product and test it out.

I’ve been using Fox Farm pH Down to manage the acidity in my hydroponic garden, and a little truly goes a long way. It’s especially effective for quick adjustments when you’re working with standard setups. However, if you’re using tap water or have an organic system (I use bacillus along with some other beneficials for root rot), this might not be your best bet. The product’s effectiveness tends to wane faster under these conditions. The reason? It’s primarily citric acid-based, which organisms can metabolize quickly. This means it loses its pH-lowering power sooner than you might expect, leading to potential fluctuations in your system. For more stable pH control in organic setups, consider switching to a phosphorus-based pH down. This type will generally maintain its effects longer, keeping your garden’s acidity levels more consistent.