I am using a 65 watt on my 29 gallon with a DIY co2 and have largely the same plant set up. Look at the little things first. On the swords, they are root feeders so dosing isn't going to help them. Get some root tabs if they have been in there long enough to have developed a system. On the pennywort, remove them from the bundle and plant them individually (they will rot if you leave them in a bundle). Wisteria is interesting and I had some problems as I had it packed in together and it wanted a bit more space.
I don't think you have too much light, I would suspect that there may be some planting issues going on (e.g. onion plant buried too far down, etc.) That type of thing. Like I said we have the same setup and mine are doing good.
And, with regard to the WPG... that is really not the best method to measure the appropriate amount of light. What you are actually concerned with is the PAR rating of the bulb (essentially the photosynthetic radiation that is available to assist the plants in the photosynthesis process). What is Kelvin of the lights you are using in the new fixture. good luck and don't give up.. Once you get those plants going you will be so thankful that you stuck with it.
I don't think you have too much light, I would suspect that there may be some planting issues going on (e.g. onion plant buried too far down, etc.) That type of thing. Like I said we have the same setup and mine are doing good.
And, with regard to the WPG... that is really not the best method to measure the appropriate amount of light. What you are actually concerned with is the PAR rating of the bulb (essentially the photosynthetic radiation that is available to assist the plants in the photosynthesis process). What is Kelvin of the lights you are using in the new fixture. good luck and don't give up.. Once you get those plants going you will be so thankful that you stuck with it.
