Jump to content

Top Aquarists' Tank Parameters


Recommended Posts

Hi @gardenman, there is a video that I could not find unfortunately of when Cory did exactly that in one of his old outdoor ponds. If I remember correctly, the par reading was way high though. It was not even comparable to our aquariums with artificial lighting haha hopefully someone knows which video I am talking about and they can link it here. 

Link to comment
Share on other sites

I think that most commonly when we use PAR for planted tanks, that the units we are measuring in are micro-mols per meter squared per second, which is equivalent to the slightly more accurate and technical term PPFD (photosynthetic photon flux density). If that's the case, then yes, sunlight has a much higher ppfd than even the strongest planted tank lights (at least according to this one source I quickly found): https://www.ledtonic.com/blogs/guides/sunlight-ppfd-measured-over-an-afternoon

Video about units for PAR vs PPF vs PPFD:

 

I feel like we should start saying PPFD instead of PAR, but I've never actually used a PAR meter and don't know what units they give for results. I know that on plantedtank.net, I've started to see PPFD used more, though PAR is still commonly in use.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...