I would either go with the doser or the WAV.
http://www.bulkreefsupply.com/dos-ddr-dosing-package-neptune-systems.html
http://www.bulkreefsupply.com/wav-starter-kit-wsk-neptune-systems.html
Thank you for the opportunity
http://www.bulkreefsupply.com/dos-ddr-dosing-package-neptune-systems.html
http://www.bulkreefsupply.com/wav-starter-kit-wsk-neptune-systems.html
Thank you for the opportunity