So I asked a question a couple of days ago asking how much Light is in my tank, I got the answer of Medium.
So as I am learning about plants in the aquarium I thought I want to learn how they figured it out, I'm not that clever so I try to keep things simple lol. But I googled aquarium lighting guides to try and learn more about lights, I found a site which told me how to calculate my light "http://www.fishkeeping.co.uk/article...r-aquarium.htm
" the equation is at the bottom.
I followed the equation the best I could and in the end I worked out my tank has 3600LUX and I was aiming for 24,200 lux which would be med light... 3600LUX that's not even in the LOW light figures that he gave, either I did it all wrong, or his info is wrong, but either way if its true then I can't understand why my tank lights claim to promote plant growth. I know they can because I have had plants that grew and still do.
I also have read the post on here about using a Quantum PAR meter I cant afford that and don't want to get to technical I just want to understand a bit more about lights so if I went out and purchased a new tank I could calculate the lights that come with it and be like right that's a high light tank or that's a low light tank. Obviously I know T5's etc are all better than T8's.
So where can I learn all this? does anyone know a good place for me to start reading basic stuff about lighting in the tank.
Regarding the equation above I used, here is the specs of my tank.
Fluval Roma 90L - 20 Gallon
Width: 60cm Height: 45cm Depth: 35cm
Like I said I did all the maths on the site, and 3600 Lux sounds pretty laughable if its true, and I read the Lux on my bulbs, which are:
T8 - Aqua Glo 15w Lux 35
T8 - Power Glo 15w Lux 50
That's a LUX of 85 which is even lower than 3600 LUX... I'm starting to think my torch would be better.
They also say Aqua Glo has a lumen of 290 and Power Glo lumen of 580..
I am aiming for lets say the med light which was 24,200... add mine up and you get 870 lumens.. I am so confused about everything right now, all I want to do is learn a bit about lights and how I can work out roughly how much light is in my tank with out to getting to technical. Other people worked out my tank to be MED light but how did they do that.....
I also see a lot of people with my tank doing DIY on there lights as apparently its so bad... but I'm not very good at DIY.. I cant find anything that would work on my tank.. I looked everywhere and because the top of the tank has a plastic case.. you cant even clip a new light set or anything.. But I don't mind low growing plants.. just wish I understood this all a bit better. Thanks for any help on this... I would really appreciate it. It's just hard to take it all in.