I have a 40 Breeder that is a month old. The tank is planted with lots of Anubias and some Jungle Vals. Lighting is 30W of LEDs, which translates to 200W of incandescent, on all day except for an 8 hour period at night. Lights produce 3000 lumens. I did use 3 osmocote root tabs around the heavier root feeders. I did a fish in cycle and after 3 weeks water parameters were great for fish. Just had some small spots of bronze algae which I know is normal for a new tank. A week after I tested the water I noticed a growth of some Blue green algae (After much time spent on the internet I'm positive it's BGA). I'm reluctant to dose with Hydrogen peroxide as I'm worried it may kill my vals. I plan on getting some black mollies to see if they'll clear it up. But most importantly I want to find whats causing it. Any ideas as to how I can fix it?