never changed lights since day 1 so...
Aquasoils - used to be a mix of prodibio, ADA and dennerle in different patches. Found the batch of ADA to be problematic, so I some areas I cleared away the soil and am using ANS and Tropica instead.
Never measured either - from tap water report, there is some calcium and no magnesium, so I dose 5ppm+ Mg if I am doing a large water change.
Thanks for the reply and partial picture of your setup.
I take it as a given that soil composition is not consistent and the testing accuracy may be poor.
ADA Aqua Soil Analyse - Aquascaping - Aquarium - Flowgrow
But one should consider that Nitrates, Fe, and to a smaller extent even PO4 and Potassium are available in in aquasoil for plant uptake so your lean dosing is mitigated and the 'true dosing' may be quite similar to other setups.
Your Phosphate (3 - 5 ppm) and Magnesium(5 ppm) (Depends on the calcium in your water) addition are more of a true indicator of your dosing which is generally inline with other values posted here recently. (Greggz, Burr740 etc.)
Not sure about your WC schedule but if less than 50% weekly your target dosing values may actually exceed many of the other tanks featured here.
If I started with TC plants and inevitable lower plant mass I doubt I could establish a tank with 200 par without major issues, your husbandry and experience in plant selection and adjustments could make or break this setup not somethingn someone with lesser experience could easily reproduce but I'd love to learn how to do it.
I also would love to see some insight into what your dosing would be like if you used only an Inert substrate as that would be more comparable to the other values reported in this thread. It would seem your Phosphates to Nitrates ratio is possibly much higher than others here but that may be an artifact of the Ammonia available from the soil balancing things out.