[karimwassef]

Many of us use hoses for years without issue. I don't see the connection there. If it wass contaminant, then the excessive water changes many of us attempt first to fix the issue would help, not hurt.

I'm not asserting that it's nitrogen gas fixation that's at the root of the issue. There's still no clarity on why some get cyano and others get dinos, for example. It may just be a race and the first to critical mass wins the tank.

I'm actually asking the experts if this theory sticks together and whether the data points really do align with it.