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RafflesGold Forums > Discussion Area > Green Water, Filtration and Tank Setup
juppie4
Hi,

i have set up a 70 litre tank for gree water set up. Was wodnering whether a bulb at 7500K would be close enough to "daylight" to produce green water? I have the light on 24/7 with one large goldfish producing the waste for the tank, no filtration just one strong air stone.

will this have any hope?

Please let me know.

Thanks.
Titus
Ave SunLight is around the region of 5500k. Here's a link to colour temperate:
http://www.schorsch.com/kbase/glossary/cct.html

My previous experience with MH light of 10,000K is fairly weak in creating green water. But still can be done.

My next attempt with bulb of 6,500K yields better result. Yet to try one with 5,500K.

Check out the sticky:
http://www.rafflesgold.com/forums/index.php?showtopic=435

Great resources here in RG smile.gif
juppie4
QUOTE(Titus @ Sat, 07 Nov 2009 12:04 pm) *

Ave SunLight is around the region of 5500k. Here's a link to colour temperate:
http://www.schorsch.com/kbase/glossary/cct.html

My previous experience with MH light of 10,000K is fairly weak in creating green water. But still can be done.

My next attempt with bulb of 6,500K yields better result. Yet to try one with 5,500K.

Check out the sticky:
http://www.rafflesgold.com/forums/index.php?showtopic=435

Great resources here in RG :)


Thanks for this. However I am still a little confused. I ahve been reading around and basically see that the best light to use is 5500K. now I cent seem to find this but I do have 4500K and 7500K which would be better to use?

Let me know, thanks.
Titus
I had not try both Ks. U have to test and try it out. I reckon the 4500k maybe a better bet?
juppie4
hmm still finding it hard to find a 6500K aquarium bulb. Is it ok to use normal flouresant bulbs if they are not specificaaly designed for aquariums however hvae the same wattage, voltage etc?!?!

Cheers.
Titus
I am not a technical person but I do not see the reason why u shld not try. Especially if you already have the lights.
CHLeong
QUOTE(juppie4 @ Tue, 10 Nov 2009 7:53 am) *

hmm still finding it hard to find a 6500K aquarium bulb. Is it ok to use normal florescent bulbs if they are not specificaaly designed for aquariums however hvae the same wattage, voltage etc?!?!

Cheers.


For 70 litres, should be a 2ft tank or slight bigger? You try 54 watts PL if not look for normal32/40 watts florescent bulbs that states Daylight, remember not Cool light. Cool light white is slight bluish.
juppie4
A little update... managed to achieve green water with a 15watt daylight bulb. Had a normal 7500K bulb on it but it wasn't doing much... as soon as I changed to the 6500K bulb it really took off. I think I am probably about 2 or 3 days away from my first re-seeding to see if the brew is strong enough... wish me luck!

ill add a picture or two to show the development of the brew if its successful. really suprised it worked with a 15watt bulb, did however have it on 24/7 for two weeks!!!

cheers.
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