juwel 240 litre black.

I have a juwel 240litre black aquarium with 2 X 54 watt bulbs with reflectors. I think they are T5 lights. Is this considered to be high or low light as I know with high light tanks you probably would need injected co2 to help plants grow better. I am going to try dose excel first but if doesn't work will go for co2 injection. But just want to make sure my tank lights are considered to be high lights.

 

I wouldn't consider it to be high light. If there were 4X 54W then it probably would be. At the moment, I would say medium light, so you could get away without CO2 and have a medium-tech tank. Also, find out what the Kelvin ratings are for the bulbs. They are indicated by 4-5 digits followed by a "K" or there should be a code on the bulb, the last two digits being the K ratings. HTH

 

It says each bulb is 9000 kelvin. I have 2 bulbs so is 18000 kelvin medium or high light then?

 

I looked on the juwel website and it said the day light bulb I have is 9000 kelvin and the nature bulb is 4100 kelvin so in total I have 13100 kelvin.

 

you don't count the Kelvin ratings together.
Each bulb has its own light spectrum, Kelvin rating
Your lights are good to grow plants yes, they in the right Kelvin rating

 

@WMDavies: I wont worry too much about your lights it is more than enough. I grow my plants with a clip on light that is used for reptile tanks. lol!

 

Thanks for the advice guys. Do you know if I would need added co2 to grow plants well in my tank as most sites say with high light aquariums you need co2. Not sure if my rank is considered high light? Or if not is using the seachem excel sufficient?