I started using fertz about 6 months ago, although skeptical, I was amazed with the results. I decided to do an experiment to illustrate how effective they are when used. I started with a dozen stems of rotala colorata around 5" long, taken from a low tech tank. (2bps c02, micro, and a 2 bulb t5 ho light.) Instead of the bright vibrant reds and purples you can acheive, I just got them to stay green in those conditions.
This is the tank that I took the stems from. You can see the rotala stems in the back on the right. They appear green as if they were rotala rotundifolia.
These are the stems in a cluster in a high tech tank. I dosed N, P, K, and Comprehensive fertz as well as c02 at 3bs. Its a 20 gal tank with two powerheads and 2 AQ 20's for adequate flow. The substrate is fluval plant stratum. This is the new growth beginning to form after only 3 days.
Day 20!! Notice the line between the green and red at the bottom of the photograph? Thats a time stamp of when they were replanted in the fert-dosed tank.
Hopefully this inspires some of you newbies who have toyed with the idea of using fertz, to get a high tech tank going. I will admit, it is a little more work than a low tech tank. BUT! For the reward, I think that extra 20-30 minutes a week is well worth it. Your scapes will never be the same! Hope you're convinced to get out and buy some ferts!