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so i have a 7 L x 2.5 W x 2 H

i see biggest lights only come standard 6ft or 8ft?

and most aquariums are only 2ft deep..

so what do you fellow big tank keepers use for lighting? is just 1 T5 4x bulb 6ft'er for a tank that long and deep be good enough without any dark spots?? even if 2 of the bulbs were to be changed to blue lights?

any help would be great, because i could possibly get a cheaper deal on buying 2 big lights as opposed to 1 now and than find out its not bright enough and 1 later!

cheers!

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On my 6x3x2 I have two Arlec 3ft slimline T5 lights that only cost $38 each at Bunnings. The bulb is enclosed and the head swivels so that you can mount them 2 ways if you have another need for them and they're solidly built with an of/on switch and lead/plug. It lights that tank adequately. I wish I'd have known about 'em before I spent 0ver 200 bucks lighting the 8x2x2 Arlec Australia - Product Details

If you're not planting the tank, dark corners are often preferred by some cichlids for "time out" and I have always lit 8 footers with just 6ft lights

kev

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Led's are 4 times the price and visibly barely twice as bright... they do however have far better spectrum and heat/efficiency ratings.

I'd personally stick with T5's maybe actinic if you dont grow special plants or corals....

Or maybe you could try those $2 led lights on alibaba - they only have 450-455nm 12000-15000K spectrum rating so I don't think this makes them suitable for specialist plant or coral tanks but they'll be bright and they're cheap as chips.

Edited by Hennessy
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Led's are 4 times the price and visibly barely twice as bright... they do however have far better spectrum and heat/efficiency ratings.

I'd personally stick with T5's maybe actinic if you dont grow special plants or corals....

Or maybe you could try those $2 led lights on alibaba - they only have 450-455nm 12000-15000K spectrum rating so I don't think this makes them suitable for specialist plant or coral tanks but they'll be bright and they're cheap as chips.

Haha

I don't know about 4 times the price of t5

I've bought two 3ft t5 GLO they cost me

$160 each then you have to buy the

Tubes (from shop).

each 3ft t5 use 39w so for my

6ft tank I was Using 156w

Have a look at page two on this link

http://www.qldaf.com/forums/product-diy-technical-discussion-11/dditt-cos-6x3x2-5-build-load-warning-51146/

I think the light would be as good as t5 if not

Better

There is cheap led on eBay and there is led that will cost you More

good 5050 led and there is cheap 5050 led

So that will make a different on the price and life time on the light

Not having a go henzo but that is just what I think

Cheers

Peter

Edited by peterlam
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hey mate if your into a bit of diy

ill put the number of a climate smart electrician who does led lights from home

i recently got a small circle light with like 12 led bulbs for my 25cm cube for $20

he also has heaps of strip lighting as well as these kinda spotlight things

he lives in rothwell and yeah just give him a call if you wanna have a look hes a great guy to talk to and i told him id deffs recomend him to everyone on here

0408071379

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I'm going to get a combo of cool white, and blue LED's for a marine setup. I'm going to want all kinds of corals (soft and hard) in this - I need to know what Kelvin or nm ratings I am looking for (in both the cool white and the blue) to make almost any coral thrive?

Am I on the right track if I get something that goes upto 20,000k and puts out 3 watts per bulb (tank will be 65cm deep)? Or is something with upto only 10,000k?

Edited by Hennessy
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i used 4 hagen power glow 18000k and 2 sylvania coralstar . i have a bank of 6 x4 foot tubes i like the higher kelvin rating it gives a sharp white light and the coral star sets it off nice

the tank is 10x2x2.5.

cheers..........mark

P1020860.jpg

Edited by markfnq
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ok so research throughout the night indicated the lower the kelvin rating the more growth but colour is poor... Higher kelvin equals slower growth but colour will look awesome. Is it also true that higher kelvin lights produce a lot less algae growth (unwanted kind)?

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