apex probes

I have some kamoer dosing pumps for sale. 1 basically new BNIB Kamoer FX-STP2 wifi dosing pump. I turned it on and ran some RO through it to test it out for a short amount of time. Works perfectly, calibrated perfectly and is quiet. Comes with everything in original box, Instructions, tubing...

Question about best practice for probe placement in my sump. I have a red sea reefer with essentially 3 compartments in my sump. No matter where I place my probes I am going against one of the neptune suggestions about where NOT to place them. My first chamber has my reefmat, my heater, and...

Neptune Salinity - Conductivity Probe - Lab Grade

I purchased a Neptune apex controller with aquabus for my 210 gallon reef tank. Worked great for the first week and after the probes broke in after 1 week of use I went to calibrate them. The night before calibration the system went down due to a random wifi connection error and now I can’t...