Sprouting

On Friday (October 12th) my 4 blue mistic seeds were finished germinating, so I put them about 1/4inch into my 1 inch rockwool cubes (root down). I'm running a drip system with 3 inch pots, and they are currently under 24/7 400watt metal halide light (which is about 2 feet above the cubes). The drip system waters the rockwool 8 times per day for 30minutes each, and so far I have added NO nutes. Water PPM is 210 and PH is 5.5 - 6.0.

Its already monday (been about 4 days time) and the seeds have not sprouted yet. How long should It take to see sprouting?

Thanks guys!

Could be a week before you see anything, dont wry you have a good setup theyll sprout soon

sounds like too much light try floro 5 inches u may have killed them mine only take a day or so to pop the first leaves out