Thanks for the replies guys. You are brewing excellent site here, the best.
unirdna, learning now that that water stuff isn’t so good, I feel better.
Wasserpest, I like your second solution, but is that Flourite dust good for plants? And even after it settles down at the bottom of the tank, will it always cloud the water during siphoning or (re)planting? If so, since I haven’t planted anything yet, it might be better if I just scoop-out everything and rinse it really well.
My only substrate experience was with Eco-complete inside Eclipse-6 (four-five years now, fitted with 28W light, Eheim Ecco, Hydor 200, IceProbe, pressurized CO2, EI, …).
Btw, this new Eco-complete is almost like a sand compared to the old one that I had since 2003.
I’ll check LFS for diatom filter tonight, as I need python asp, because this 20 g. isn’t going to work with buckets, but how does one condition the water without bucket?
Guys, sorry for my poor English.