Just FYI,Raul-7 said:I've noticed TMG is much more expensive for the same amount, 500mL: $20 opposed to $5 for Flourish.
500ml - $10.99
5L - $49.99 (THE BEST BUY !!!)
500ml - $7.49
2L - $21.99
Personally I prefer TMG which I have been successfully using for few years.