I have found everybody with success went up to about 2 ppm. I had no tester so just dumped in the amount for 2 ppm. 2-3 days later diatoms started to bloom. I have than added for about 2 weeks 20 drops ever day to 40g tank.Alright ill try out spongeexcel thank you! and ill dose a little less than instructions just to be safe.
mall together I used about 1.5 small battles of spongeexcel
Hope this helps. (I had both LC and SC Amphidinium)
As per cyano I wiped it out with a dose of chemiclean