Hey grow bro's, I can add this: I run mega crop and sweet candy and bud explosion almost exclusively until I got a chance to run this bottle of Mantis buffered nutes.
I can report this back, IF you want a all in one nute for hydro or coco, promix hp etc, this is it. Through away all your fancy pens and meters and just add 5ml to 1lt tap water and go. I have been feeding 3 plants from pop to chop, (done in 7-10 days). It has been the easiest grow i have done to date. 1 in a solo cup, 1 in a 2 liter plastic bottle and 1 in a 3 gal airpot. All plants look good with very little def'c noticed throughout entire grow.
I have just under half a bottle of Mantis left.
At $60 a liter Canadian it is more then megacrop for sure but the simplicity has to be worth something.
If I didn't have 20lbs of mc I would be using mantis. I will make that decision when my mc is gone.
If I was just starting out indoor growing this would save someone a lot of cash in up front costs.
No ph pens, no ppm meters and no mixing different strengths for different strains.
It takes what it needs.
In Conclusion, I would recommend at $60 a litre.
Hope this helps somewhat.
My journal of mantis is under the mantis thread in Additives and nutes if interested.