Organic stimulators in recirculation systems.

I would do weekly flushes and change the Res. But remember to keep that res temp low..I assume there is one? Either way, if you're using the same solution you'll need to keep the temp low so no bad bacteria builds up. If you can hold a low temp.. upon changing your water for your system. Take a cup out so you can quickly kick-start the bacteria. Once it's low temp it can be done.

High bro, the problem with organic nutrients inside a recirculation system is that most of this type of nutrients need to be finished (used) within 2-3 days. You can read it at the bottle from the nutrients.