Originally Posted by
planter
8.2 is really high you must use a water softener. If that's the case can you bypass the softener? Ferns and anubias are known to be able to handle really hardwater.
Thank you for the link I didn't realize there was a freshwater version. Those plants don't need much light and I imagine that fixture is able give those plants sufficient light. You are also dosing ferts which again with these plants you really shouldn't have much of a nutrient problem if your dosing.
But first I'd try bypassing the softener before I did anything else. These plants respond slowly so I wouldn't expect an immediate change. I'm not sure if that's the problem but that's where I would start,