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Discussion Starter · #1 ·
I've been reading posts here for over a week and can't seem to find the answer...
I have a 5g tank and am using a 10 watt Marineland Natural Daylight CFL. The spectrum rating?? (remember I'm a newbie for my planted tank) is 5100K.
Is this considered low light? Is it at all sufficient for growing plants?

so much to learn......
 

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When working with nano tanks, the wpg rule goes out the window. So to answer your question, yes it is considered low lighting. Try to get a bulb around 6500k for the spectrum as it is best for plants (someone please correct me if I'm wrong).

What is your goal for the tank (fast growth/high maintenance, slow growth/low maintenance, or somewhere in between)? Once you have that determined, then you can gauge the amount of watts for the bulb.
 

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10 watts over a 5 gallon tank is extremely low light, probably suitable for only mosses and anubias.

anything above 5000 kelvins is good for plants. It's difficult to find 6500k CFL bulbs.
 

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Discussion Starter · #4 ·
My goal is to get anything to grow since I am just starting. I can't find any anubias locally. I read that hygrophila was good for low light. I have a difformis and corymbosa stricta. Also a dwarf sea grass, which is doing the best so far.

I bought a Flourish starter kit (Flourish, iron and excel.) I've been using it for 6 days.

My confusion about the light stemmed from the 5100K rating from a 10 watt bulb. So, this bulb isn't doing any good because of it's low wattage?
My socket has a 15 watt rating.

Thank you both for responding
 

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K or kelvin rating is the color temperature, a higher color temperature is favored because it looks nicer, basically.

10 watts is probably barely enough for hygro and dwarf hair grass, 13-15 watts would probably be better.
 
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