CaRx Effluent Increase

Yesterday morning I noticed my Alkalinity had dropped to 7.4 down from 7.8 last week. I had noticed this drop over the past several days but was waiting to see if it would maintain at a slightly lower level. Since it is continuing to drop I increased the effluent drip rate out of my reactor while maintaining a PH of 6.4-6.6 inside the reactor. This is maintained with my American Marine PH controller. Growth rates and color are looking better by the day at these lower values, and I am continuously feeding more to keep nutrient levels a bit higher.