The plants are doing great, they seem healthy and are growing like they should. Need to wait few more days for all the plants to have grown proper root system to the bottoms of the rockwool cubes. As you can see, I started the seedlings under a 250W CFL lamp and seems to me that the CFL lamp is ideal for seedlings and rooting as long as you can keep the light very close to the plants. I haven't had seedlings grow their roots this fast ever before, and at least when growing AF's in NFT (or AF's generally), its really important to get a proper root system growing (to prevent drowning and for explovise growth when transplanting into NFT) FAST, ideally within two weeks, so the plants have plenty of vegetation stage left when transplanting into NFT in order to get those nice bushes.
I placed some of the seedlings under a HPS light like after one week of grow, because I was thinking bigger is better, but they weren't too happy under the hard HPS light and seemed to me like the roots were almost d(r)ying from the bottom / stopped growing so I quickly placed them back under the CFL light. Few days' setback for the ones that were under HPS light, luckily nothing major. You can see the difference in pictures.
Happy days. :)