Hi planter,
Normally, high KH has not been implicated as a causal factor in poor plant health although I'd have to imagine there is some upper limit at which growth would be affected. Unless it's absurdly high like something we'd see in Lake Malawi or someplace like that this shouldn't be a suspect.
Eco complete is as good a substrate as you'll find. The plants in the photo below were rooted in eco complete and kH 6-7 water which hardly ever varied so there must be some other factor, although from what I've read in some other posts there has been some batch problems with eco complete causing water cloudiness and possibly KH issues. BGA is normally a consequence of low nitrates or low flow and hair algae can sometimes be attributed to low CO2 or low flow. Depending on other variables, low pearling is typically associated with low CO2 relative to the amount of light so in my opinion it may be worthwhile concentrating the troubleshooting efforts in these areas.
Cheers,
Normally, high KH has not been implicated as a causal factor in poor plant health although I'd have to imagine there is some upper limit at which growth would be affected. Unless it's absurdly high like something we'd see in Lake Malawi or someplace like that this shouldn't be a suspect.
Eco complete is as good a substrate as you'll find. The plants in the photo below were rooted in eco complete and kH 6-7 water which hardly ever varied so there must be some other factor, although from what I've read in some other posts there has been some batch problems with eco complete causing water cloudiness and possibly KH issues. BGA is normally a consequence of low nitrates or low flow and hair algae can sometimes be attributed to low CO2 or low flow. Depending on other variables, low pearling is typically associated with low CO2 relative to the amount of light so in my opinion it may be worthwhile concentrating the troubleshooting efforts in these areas.
Cheers,