Do you think a reefsafe treatment for red slime algae (cyanobacteria) would work for BGA. I ask this because I've got some somewhere (never used it though). I'm battling with BGA at the moment in my still cycling 72L High Tec. I'm on top of it at the moment but the ADA amazonia is still leeching quite a bit of ammonia, I'm down to 2x wk 50% W/C from daily 50% changes. The BGA seems to be confined to the lower tank (substrate and glosso). Filtration is a Tetratec EX700 and I've also got a Koralia 1 (1500L/H) powerhead in there for extra flow. I ripped up all the glosso yesterday and just saved what I could, then soaked what I'd saved in a bucket with the red slime treatment for a few hours. Rinsed it off then replanted it. I'll let you know in a few days if it survives or not.