White Widow * Big Bud 63W/100W run 5

At the end of last week my Biobizz Bloom run out and I decided to try some other bloom nute. I'm used to biobizz giving me low Ca and / or mg deficiency which i get over by using cal max, but this time the mg deficiency was a lot more serious, see the picture of the leaf that I uploaded. I got Grotek Solotek Bloom, we will see how it works.