What is the size of your light? I have the 24"-34" model on my 55 gallon corner tank (also 18" from substrate).
Here are a couple things that may be useful (Using the 24"-34" as reference; if you have a different size then these numbers will need to be tweaked).
• The PAR of this light at 18" depth is somewhere around 57 par with all the LEDs set to 100% (I'm assuming this is with no glass on top...glass will cut this down by a few par).
• Your light ratios look less than ideal. The app has different presets built in, with optimal light ratios. Go to "Export" at the bottom of the interface and load the "Planted" preset. The Planted preset should provide around 50 par.
• If you want less light, reduce each of the LED colors on the Planted preset downward by the same percentage.
For example, if you want 30 par, reduce each color in the default Planted preset by 40%.
That would be Pink: 51%. Blue: 12%. Cold White: 44%. Pure White: 60%. Warm White: 48%.
• It looks like you are only running your max brightness for 2 hours a day. The rest of the day with reduced percentages is not going to be enough light for a proper photoperiod.
Im growing moneywort, Rotala, hydrocotyl Japan, and water wisteria, no-CO2 low tech, with no problems at this level (and an Anubias in the shadows at the back of the tank).
I have the 48" I was told it's closer to 100 par At 18", when I had the 3 hour photo period at 80% I had hard spot algae all over the glass within 4-5 days also increasing the phosphate dosage didn't help neither so I lowered it to 60% which cut down on the hard spot algae, I got this preset from Bently Pascoe's YouTube but it's just to strong I believe, this light is strong unless hard spot can be caused by something else, also what I was told about how this lighting program works is you can run the light longer with lower intensities getting better results, like example the old program if you ran the light for 12 hours with say 80% as you had limited customization you'd have algae soup, with this running it how I am you can get away with running it for 12 hours because of the different intensities? my light when I first programmed it was running for 12.5 hours with a 3 hour 80% intensity and that was way too strong I believe unless again, hard spot is caused by something other than light , and my anubias is not in shadows I was silly and put it higher up In the tank On wood.
My anubias Is wrecked, it has hard spot algae all over it so I'm nursing them back to health.
The real bummer is before my stroke I had it going very well, when I was in the hospital for 9 days someone left the light on 24/7 and also dumped half a huge can of fish flake in the tank, when I got home the tank I didn't think was fixable hair algae 8ft long, green spot almost impossible to scrape off the glass, destroyed the anubias, it's going really slow I probably would of been better off to just buy new anubias and put this stuff in another container instead of nursing it back to health in my main tank, since my stroke I don't have the mental strength to fix it without asking for help, I'll get better but for now I need assistance, so I like how the tank comes on and off, how would I replicate the planted preset the way I have it now with the same on time so I can enjoy it.
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