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Old 04-03-2013, 11:58 AM   #1
tattooedfool83
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Lighting for a dummie like me


So i have a 75 gallon planted tank, i believe its 18" from top to substrate. i have 4-32watt fluorscent bulbs sitting on the top of the tank. 2 of them are 6500k and the other 2 are 5000k. The tank appears to be getting enough light, no algea problems, there is plant growth. So is this enough light? To much light? Ive been reading on EI and believe im gonna give this a try as my plants dont look unhealthy, there just not as green as id like to see them.
I have
cabomba
ruben sword
amazon sword
micro sword
java lace
crypto spirallis**
some jungle val.

Also i have just set up a 10 gallon tank last night, 12" from top to substrate, this one has a coralife t5 light, but how do i tell if its a NO or HO? I made an awesome score off of craigslsit for all this epuipment and tanks and as a newbie im learning as i go.

There is no CO2 on these tanks, the 75 gallon has a DIY but that obviously has no impact. and as the 10 gallon is small enough i can get away with a DIY until i go pressurized.

My funds are limited so im doing what i can with what i have and plan to upgrade a bit at a time.
So any suggestions or ideas would be much appreciated...
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Old 04-03-2013, 01:28 PM   #2
Kathyy
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Sounds like you have the perfect amount of light if plants are growing and there isn't any algae! You may not need the whole EI range, check to see how nitrate and phosphate is running. Perhaps just adding some potassium and micros would be enough. Here is a nice write up about using EI in a non CO2 tank. There is a good discussion here on the site as well somewhere.
http://www.sudeepmandal.com/hobbies/...ed-tank-guide/

Bet the bulb is NO, check the wattage.
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Old 04-03-2013, 01:45 PM   #3
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Thank you. I was reading that my plants might just have a definciency of some kind and that adding some nutrients would correct that
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Old 04-03-2013, 02:00 PM   #4
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I have a 75 as well with DIY co2. I run 2 t5no bulbs and 2 20watt cfl bulbs in a dome fixture.

I have what I believe is really good growth. I have had some algae issues but after doing a whole tank h2o2 treatment and upping my ferts it seems gone and plant growth has increased greatly.

I use oscmocote root tabs and dose

-micros 1/4 tsp micros 2x week
-iron 1/4 tsp 1x week
-1 tbs potassium 2x a week
-some phosphate 2x a week (I use saline enema for this about 3ml)

-I never dose nitrate and only dose phosphate because I don't ever feed prepared fish food just live
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Old 04-03-2013, 03:05 PM   #5
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What type of substrate are you using?
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Old 04-03-2013, 04:38 PM   #6
BBradbury
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Default Your 75 G Lighting

Hello tat...

You've got 1.5+ watts of lighting per gallon of tank volume. This would be considered moderate light. Research the requirements of the plants you have and if they require no more than moderate light, you're fine.

T12 bulbs would provide a few more watts, 40 per bulb and distribute the light over a bit wider area than a T8. The 12 will fit into the same fixture as the 8. Just something to consider in the future.

I've used florescent bulbs in my larger tanks for several years, and if I don't get light demanding plants, everything grows very well.

B
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Old 04-03-2013, 04:42 PM   #7
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awesome, thanks. It really boils down to the fact im over thinking everything. Trial and error until i find what works.
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