I do run the reactor off of the main pump. I did this because I did not want to have another thing plugged in. I went ahead and ordered a GEO reactor yesterday. I use 2 teaspoons of kalk per gallon of r/o water in my top-off reservoir which is a 5 gallon container. I use about 1 gallon of top-off a day. The corals were just shedding skin all over. This time they are losing it in spots from tip to bottom. I don't notice any microbubbles coming into the tank from the main pump and I use a ball valve in between the pump and the reactor, turned down really low. Could this still cause vapor lock?
When I turn the knob on the effluent control just a tiny bit it immediately comes out at the right speed again. It almost seems like its clogged. Should I keep the Geo or maybe switch my DIY back to the maxijet? I have a small sump what if I put the maxi in a filter sock to keep the microbubbles away.