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Thread: My inexpensive CFL light solution Reply to Thread
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Topic Review (Newest First)
04-16-2014 06:48 AM
FlyingHellFish ^
I think Walmart sells something similar, or you can always order them online. What you're looking for is a clamp on desk lamp, usually artist use them for drawings. You have to make sure your desk have ledges though.

What about LEDs? There some great affordable fixtures out.
02-18-2014 08:26 AM
serenityfate Was looking forward to trying out that swing arm lamp flyinghellfish got (looks really nice), but pretty bummed out California ikeas don't carry those around
02-09-2014 07:44 PM
jmrmotorhead Hi everyone, wow, can't believe this thread is STILL going! It's great!

Honestly, how tall is the 75? It might be too talk to penetrate far enough, however without co2 you dont want too much lighting. Light drives the growth speed, all all other nutrients including co2 much be readily available I meet the plants growth speed. If you planning on growing low light plants slow, this may still work!

I just added a fourth done above my 40b, getting ready to step it up a bit since I'm tired of plain rotala and jungle Val's!
Matt
02-08-2014 03:36 AM
jennesque Ok, so is this a bad idea on my 75 gallon tank? :/ this is what I planned to use but I'm reading it's not enough lights. I just want medium.. Don't plan on using CO2 but I do dose ferts.

I had these on my 28gal Bowfront tank and that's the only time I ever had any algae problems.. But even then it was pretty minor. Only grew on the driftwood so I didn't mind. This tank is obviously taller though.
02-04-2014 04:01 AM
neilshieh @yashmack
That is the first time I've seen such an interesting tank!

3 23 watt daylight bulbs using these work lights light my 29 gallon very well. It definitely gives me at least med/high lighting since I can grow HC and ludwigia sphaerocarpa with it. I swap out my bulbs every year, a 4 pack only costs me 10 bucks at home depot!

check my tank journal for the plants I'm growing with these lights.
02-04-2014 03:36 AM
yashmack Im using this on my 8g hex tank
got the fixture from walmart, the bulb too
the bulb is a 25 Watt GE Daylight CFL, its rated at 6500k and 1500 lumens


02-04-2014 02:06 AM
emmynk Okay. Is there any particular preference? I'm really not so smart when it comes to lighting, I don't understand if normal bulbs help plants grow. Can someone help simplify it for a lighting newbie I'm going to re plant my tanks with low -med light plants and want to make sure everything balances well.

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01-26-2014 04:43 AM
pwu_1
Quote:
Originally Posted by emmynk View Post
Does it have to be a special type of bulb to support plants?

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I think it is mainly personal preference but most people here use either 5000K or 6500K color temperature bulbs since those bulbs gives off a nice white light that makes your aquarium and plants look nice. Anything less than 5000K and the light starts getting pretty yellow and anything over 6500K starts looking purple.
Look for the packages that says "daylight". Sometimes the packaging won't say the actual color temperature but if you look closely at the base of the bulb the color temperature will be printed there.
01-26-2014 03:32 AM
emmynk Does it have to be a special type of bulb to support plants?

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01-21-2014 02:44 AM
emmynk Hi! What bulbs do I buy? I got lost in all this light talk ;-; I have a planted tank, and I'm planning to get more plants so before I get more I want to get my lighting correct. Thanks"

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01-14-2014 02:57 AM
Mrnbo
Quote:
Originally Posted by m00se View Post
I was just at Lowes and saw these security LED's on sale for $39. Now I know it's hard to tell how bright they'd be over a tank but they sure blinded me when I was looking at them, especially compared to the other lights surrounding it. Color temp was in the 5600k range I believe. 1200 lumens. I am SERIOUSLY considering grabbing a box of these and playing with them.

http://goo.gl/ziU15a
I have two 20 watt 14,000k led floodlights over my tank right now, lol nothing is growing. Could be color temp, ferts, lack of co2... I have no idea I just started haha. I was looking at these to up the par so that I can use the co2 system I got. These would be supplemental kind of and they were pretty cheap.
01-14-2014 02:44 AM
m00se I was just at Lowes and saw these security LED's on sale for $39. Now I know it's hard to tell how bright they'd be over a tank but they sure blinded me when I was looking at them, especially compared to the other lights surrounding it. Color temp was in the 5600k range I believe. 1200 lumens. I am SERIOUSLY considering grabbing a box of these and playing with them.

http://goo.gl/ziU15a
01-14-2014 02:16 AM
Mrnbo Are cfl floodlights any better?
Sunlite SL23PAR38/65K 23 Watt PAR38 Energy Saving CFL Light Bulb Medium Base Daylight - Amazon.com Sunlite SL23PAR38/65K 23 Watt PAR38 Energy Saving CFL Light Bulb Medium Base Daylight - Amazon.com

Been reading up a lot, but for the not so scientifically educated its hard to keep up.
01-13-2014 04:15 AM
anthony10292 Never priced nor used them. If a T5HO shop light exists that would prolly be the cheapest route

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01-13-2014 04:09 AM
Mrnbo
Quote:
Originally Posted by anthony10292 View Post
I actually just put two of these dome lights up on my 20long shrimp tank (12inch height) with no paint and there were darker spots in the middle of the tank and on each far side of the tank. Decided to spray the inside flat white and its seems to completely get rid of those dark spots. Not bad for a $2 can of paint.

As far as height, my 20 gallon is an old extra high tank. I think its 23 or 24 inches tall with about 20 inches from light to substrate. Pretty much the worst tank you can use to setup a planted tank. And I have algae problems so the light must be getting down to the bottom of the tank. For a 48inch tank I would go with more than 2. 3, maybe 4 would do the job. 4x23watts would give you almost 100watts. And then it just depends on what plants you want to grow.

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How does this compare to the shoplight option - in terms of cost and plant growth?
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