Hi, I'm looking at some 48" T8 bulbs for a fixture I just picked up to add more light to my aquarium. I've got 2 x 6500 T5HO bulbs in my GLO light fixture and want to add 2 more 6500k T8 bulbs in my new fixture.

My question is, is there any appreciable difference between a 6500k Coralife brand bulb and the 6500k GE I can pick up at Lowes. 2 Coralife at my local store run $44 where 2 GE are $8...


Thanks in advance.

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75 Gallon: Fluval 405, Eheim 2229, Penguin 330 - Heated
48" Hagen Glo Fixture w/ Dual T5HO & 48" 2x T8
1 Amazon Sword Plant, 2 Java Moss Rocks, Wisteria
1 Gold Gourami & 1 Blue Gourami
9 Harlequin Rasbora
5 Turquoise Rainbows & 15 Neon Tetra
1 Pictus Catfish & 1 Singapore Shrimp
1 Rainbow Shark & 1 Peppered Cory Catfish

You can't use T8 bulbs in a T5HO fixture. You have to use T5HO bulbs.

I guess it could be worded better.

I have a GLO fixture and I have a new fixture.

The new one takes the T8.

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75 Gallon: Fluval 405, Eheim 2229, Penguin 330 - Heated
48" Hagen Glo Fixture w/ Dual T5HO & 48" 2x T8
1 Amazon Sword Plant, 2 Java Moss Rocks, Wisteria
1 Gold Gourami & 1 Blue Gourami
9 Harlequin Rasbora
5 Turquoise Rainbows & 15 Neon Tetra
1 Pictus Catfish & 1 Singapore Shrimp
1 Rainbow Shark & 1 Peppered Cory Catfish