when will i need high light in a aquarium? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 11-21-2012, 04:48 PM Thread Starter
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when will i need high light in a aquarium?

as the title states when will i need to use high lights? here is my aquarium... let me know if i need low-med-high lighting? and what would be consider as high light for a tank?


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post #2 of 9 (permalink) Old 11-21-2012, 05:24 PM
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There is no point where you "need" to use high lighting; it is a matter of what you ultimately want to do.

Higher lighting means that your aquarium will be higher maintenance; there will be a need for CO2, fertilization, and regular pruning, etc.

Lower lighting means lower maintenance.

Without your light specifications, it is hard to determine how much lighting you have.

I would take a look at Hoppy's very informative thread here.

PAR vs Distance, T5, T12, PC - New Chart

Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
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post #3 of 9 (permalink) Old 11-21-2012, 05:50 PM Thread Starter
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here is the specs that you needed

as of right now i am running 2x T5HO 39W 36" bulb on a icecap ballast with tek2 reflector's, my tank is a 40B tank at 36"x 18"x 17" and only 30 gal of water when everything is setup and water is added... fixture is 23" from substrate to light and i keep my lights on 9-10 hrs a day every day on a timer..


also talked to hoppy about it also but was just wondering about the high light thing... if i wanted to go all out on plants (half my tank is covered in plants) would it still be low-med light or would it be consider a high light tank?
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post #4 of 9 (permalink) Old 11-21-2012, 06:10 PM
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Quote:
Originally Posted by Bryanmc1988 View Post
here is the specs that you needed

as of right now i am running 2x T5HO 39W 36" bulb on a icecap ballast with tek2 reflector's, my tank is a 40B tank at 36"x 18"x 17" and only 30 gal of water when everything is setup and water is added... fixture is 23" from substrate to light and i keep my lights on 9-10 hrs a day every day on a timer..


also talked to hoppy about it also but was just wondering about the high light thing... if i wanted to go all out on plants (half my tank is covered in plants) would it still be low-med light or would it be consider a high light tank?
Your current lighting would squarely place you into high light (or more).

Depending on plant mass, you may have (very) high light at the surface, but low(er) light at the substrate level (i.e. if your plants are very overgrown).

Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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post #5 of 9 (permalink) Old 11-21-2012, 06:13 PM
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It depends on what type of plants you want to grow. A tank full of anubias doesn't need intense light. Limnophila Aromatica on the other hand appreciates bright light. You need to figure out what type of plants you want and go from there. This is a good resource to learn about plant needs:http://www.aquaticplantcentral.com/f...c/plantfinder/

This site also has a plant database but I don't find it as helpful as the one linked above.

Quote:
Originally Posted by Bryanmc1988 View Post
here is the specs that you needed

as of right now i am running 2x T5HO 39W 36" bulb on a icecap ballast with tek2 reflector's, my tank is a 40B tank at 36"x 18"x 17" and only 30 gal of water when everything is setup and water is added... fixture is 23" from substrate to light and i keep my lights on 9-10 hrs a day every day on a timer..


also talked to hoppy about it also but was just wondering about the high light thing... if i wanted to go all out on plants (half my tank is covered in plants) would it still be low-med light or would it be consider a high light tank?
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post #6 of 9 (permalink) Old 11-21-2012, 06:25 PM Thread Starter
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talked to hoppy and he said to go with 1 bulb is enough and the only light needy plant i have are DHC and riccia F other then that the rest are low light
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post #7 of 9 (permalink) Old 11-21-2012, 09:17 PM
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I can tell you that dwarf baby tears need high lighting to grow good. and fertilization
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post #8 of 9 (permalink) Old 11-21-2012, 10:21 PM
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Plantbrain has grown HC (dwarf baby tears) with about 40 micromols of PAR, but also with very good CO2. CO2 reduces the plants need for more and more light. Another way of putting it is that with CO2 plants grow much faster whatever the light intensity is.

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post #9 of 9 (permalink) Old 11-21-2012, 11:10 PM Thread Starter
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I can tell you that dwarf baby tears need high lighting to grow good. and fertilization
thats not true... you can look at my HC growing thread... i had a 3 ft florescent single light bulb for 2 ten gallons next to one another and in one of the tank i have HC growing like crazy... the bulb was a 6500k at 30watts total...







co2 is not a problem i have plenty of that to go around but i have a problem with my co2 regulator i hope i wont have to start a new thread over it... well here goes...

i turn my co2 tank on and turn regulator to 40psi... leave it over night and check back again in the morning (11 hr later) and psi drop from 40 psi to 35psi... though it was a leak so i check with soap and water but no leaks that i can tell nor any bubbles from the soapy water... is it normal to get this kinda drop? assuming that in the tank it comes out cold and once out in the regulator it drop due to room temp but i could be wrong any help?


p.s. i turn on to 40 psi then shut off the 5lb tank valve and leave it over night etc
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