based on those parameters, what type of dosing would you recommend? Frequency?
How do the plants look is my only determining factor when I am starting a new tank... the parameters tell me where
to start, not when
The levels of nutrients you keep and when you need to dose is always "tank specific"... what I mean by that is the plant types you keep, the lighting you have over them, etc.
No two tanks are really the same also due to the water source. Some water sources (well water for example) can vary from street to street... let alone state to state. Some water sources are loaded with micro's that would need to be dosed individually in other areas.
There is no set time limit
, I start dosing when the plants look like they need it and not until...
With your watts and the CO2 addition you might want to start dosing lightly, but only if you think you should because the plants are looking tired... not because you think you "MUST" do it because it is a planted tank and thats what you are supposed to do ! This is where we get all the great Algae threads to discuss. They usually start like this... my tank has been set up for 2 weeks and I have this... yada~yada~yada~ stuff growing on my ...
And by the way... Forget the old rule about nitrates in an aquarium when you have live plants that draw nutrients from the water column like your wisteria, anacharis or watersprite... they will gobble them up quick. Only the root feeders such as your crypts, swords, lotus's etc. do not care if they have a good supply of nitrates or not.
I am a fan of the ferns... I dose my nitrates at *gulp
*... 30 ppm and no harm done to my fish, this is done weekly after every water change and they are normally down to 10-15 by the end of the week.
Like I said... each tank is different... if you think you should start to dose then by all means start, whats the worst case scenario ? A bit of Algae ? The only gauge we have for nutrition is plant appearance and algae appearance... thats what makes this hobby so fun, its always changing !