I used it before and during the start of reef energy use. I got really low nutrients and it actually helped. Once I finished the fuel I have kept using reef energy with a higher dose. Ive been pleased with the result so far but Im considering the ME corals polipe extender but if I go that route it will be in conjuction with reef energy.
At the moment I dose reef energy A&B, red sea potasium k, lugols and trace elements.
I also use a doble stage calcium reactor and kalk stirrer with and ATO and aqualifter.
I built my own equipment, skimmer, kalk stirrer, calcium reactor, tank, overflow and sump.
I'll post pics of my systems tomorrow.