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Discussion Starter · #1 ·
hello :fish:

i bought the rio 300 of juwel last week, and i noticed it comes with two 54W T5.

WPG makes it only about 1.35, while i saw online that for low tech planted aquariums i need at least 1.5~2 WPG.

some places online say that the WPG rule does not apply to T5, and that 108W would be enough for a 80G tank, and some places say the opposite.

im confused :icon_redf
 

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Everything with T5 lights depends on the ballast and reflectors. There are some very low powered ballasts used on T5HO lights, and some very poor reflectors used on them too. But, there are also many very good ballasts, full powered, and very good reflectors. Can you take a photo of the reflector/bulb area of the light and let us see what we think of it? That won't tell us if the ballast is good or not, but it at least removes one of the unknowns.
 

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Discussion Starter · #4 ·
well,
i would love to take a photo of it, but im still waiting for it to arrive from germany...

the aquarium is rio 300 by juwel, i guess you've heard about those already :)

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i called the store yesterday and asked them about that issue.
they told me that my aquarium has 4*54W and not 2*54W, and that juwel doesnt make 2*54W hoods anymore.
this is kinda weird because both me and my wife can swear that they told us 2*54W when we ordered it last week...
we'll go there on saturday and check it out ourselves.
 
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