Thanks, i have no idea about parentage. I got it from vietnam. I keep it in grodan rockwool, I give 20/20/20 +TE+12 CaO+3MgO fertilizer, 400 uS/cm every time, set pH around 5,8, but i check the EC of outflowing water, if it is higher, than 500 uS, I give only pure rain water till EC drops to...