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I can't find th eanswer to this question, so here goes. I've got a 2x24watt fixture over my 29 gallon. I have been using one geissman aquablue, and one geisemann midday. I do have the original pink 'freshwater' Current USA bulb that came with it, would that be more appropriate?
The aquablue is 60% actinic and 40% 10K. I've heard that the actinic spectrum allows for algae growth, is that correct? However, I like the look of midday/aquablue better than the midday/pink freshwater combo. Also the aquablue seems brighter than the pink bulb. Any ideas on this, or does it really even matter that much? thanks for any info on this....
 

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Use the combination that you think looks the best. Those seem to be T5HO lbulbs, so you have enough light to waste a little bit.
 

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Fresh Fish Freak
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I personally don't buy the "actinic light causes algae in freshwater tanks" thing. At least, I've never seen any hard evidence.

I agree with Hoppy- I think you've got enough light over your tank that you can stick with the actinic if you like the way it looks. I like running actinic over my tanks, I like the way it really highlights blue fish.

If not, go with a different bulb.

It's just your own aesthetic.
 
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