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Discussion Starter #1
Hello, I have a 29 gallon tank with low light plants. I was wondering if this hood that's on Craigslist would be an upgrade to what I currently have.



http://dayton.craigslist.org/pet/3695003275.html

I know that LED lights are supposed to be good but I dont feel like that hood hits the whole tank, it seems a little too narrow.

I currently have just a standard florescent 20W 6500 K tube on the tank.

So, anyone used this particular hood for plants on a 29 gallon or have any thoughts as to which would be better?
 

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Discussion Starter #3
personally (hind sight is 20 20) i would stick with the current light you have, too much light and you will have a serious headache with algae. if your plants are growing with your current light then i would stcik with what you have rater then going brighter.
Well the plants right under the strip look good but the java fern at the bottom isn't thriving, the java moss is slow growing and the plants more in the front of the tank grow towards the back of the tank. I feel like this hood would light the front a little better but I worry that plants on the front will all grow inwards similar to how my plants grow towards the back now.
 

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java ferns and java moss is slow growing reguardless of what you have weather its sun directly over your tank with co2 injection and EI ferts its going to grow slow compared to other types of plants, its just the way they are. the plants are going to always grow towards the light. and in low tech planted setups less is more as far as your lighting goes. take a peek at my aquarium journal to see what happens with too bright of a light, i also have a thread and the algae has started with some pics of how algae took over my tank and attacked my plants.

i highly reccomend sticking with what you have unless you want to figure out a new fert dose light period and possibly have to get co2 or "liquid carbon" aka excel
 

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java ferns and java moss is slow growing reguardless of what you have weather its sun directly over your tank with co2 injection and EI ferts its going to grow slow compared to other types of plants, its just the way they are. the plants are going to always grow towards the light. and in low tech planted setups less is more as far as your lighting goes. take a peek at my aquarium journal to see what happens with too bright of a light, i also have a thread and the algae has started with some pics of how algae took over my tank and attacked my plants.

i highly reccomend sticking with what you have unless you want to figure out a new fert dose light period and possibly have to get co2 or "liquid carbon" aka excel

I know java fern is slow growing but its also turning brown. And I thought java moss was supposed to grow like weeds after established?

I do realize that this is probably not a light issue, though.
 

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I doubt that light will be a step up, it's not a plant light and the bulbs are low wattage... Probably 0.1 Watt per,if you are lucky, maybe even 0.65 Watts per bulb. Maybe 4.5 Watts in total which, for a 29 gallon is too little and not likely to be the right kelvin for plants as its not intended for them, keep in mind that you cannot compare LED watts to fluorescent watts directly. My 37 gallon which is 30" long has a 24" fixture (Marineland double bright LED) and it is decent for the bright side and can be offset to provide lower light at one end for my java ferns and crypts.

Jeff
 

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Discussion Starter #8
are you using any comprehensive ferts? the plant could have a defiancy somewhhere and has stopped growing/started to die if it is missing one of like 17 diffrent componets.
I do use a comprehensive fertilizer. There are also a bunch of fish in the tank along with snails and shrimp. They are fed well.

How can you tell what component (nutrients, light, CO2, etc.) your plants are missing?
 

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I doubt that light will be a step up, it's not a plant light and the bulbs are low wattage... Probably 0.1 Watt per,if you are lucky, maybe even 0.65 Watts per bulb. Maybe 4.5 Watts in total which, for a 29 gallon is too little and not likely to be the right kelvin for plants as its not intended for them, keep in mind that you cannot compare LED watts to fluorescent watts directly. My 37 gallon which is 30" long has a 24" fixture (Marineland double bright LED) and it is decent for the bright side and can be offset to provide lower light at one end for my java ferns and crypts.

Jeff
I'll look into that one. Thank you
 

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to touch on k rating briefly, plants can use greens blues and reds you can lookup a kelvin chart to see which ratings give which colors and how much.

as far as being able to tell if plants are showing deffiancys they will tell you what they are lacking or getting too much of by their appearance. Keep in mind it is normal for plants to drop leafs as they are constantly growing new, but a large leafs drop off means something is up usually. Are you seeing anything with your plants that is raising concern?
 

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I doubt that light will be a step up, it's not a plant light and the bulbs are low wattage... Probably 0.1 Watt per,if you are lucky, maybe even 0.065 Watts per bulb. ....

Jeff
Note the bold face, I goofed when I said 0.65 as I meant 0.065 watts

Jeff
 

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Discussion Starter #12
to touch on k rating briefly, plants can use greens blues and reds you can lookup a kelvin chart to see which ratings give which colors and how much.

as far as being able to tell if plants are showing deffiancys they will tell you what they are lacking or getting too much of by their appearance. Keep in mind it is normal for plants to drop leafs as they are constantly growing new, but a large leafs drop off means something is up usually. Are you seeing anything with your plants that is raising concern?
The bulb is 6500k, 20W

The java ferns leaves mostly all have brown spots. I think all the Mexican Oak died already. The anacharis looks good, the java moss looks nice but is slow growing after being in there for a few months. The hornwort is good. I just added an Amazon sword and thats looking sadder each day but I know some say that the leaves will die then grow back after moved to different tank sometimes.

Something about the Wisteria is making me think lighting is an issue. The leaves at the top look great, nice and green, and the leaves are close to each other on stem. But as you go down the plant there are fewer leaves that look sad and there are barely any leaves at the bottom. I have read that when there is far spacing between the leaves on the stem that there is poor amount of light, or is this just natural for Wisteria?
 

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as far as your wisteria goes its probably a light issue. I have had mine for a month and had to separate it twice already thing grows out of control. but when its starting to get heavyuptop it starts to do what you are explaining happens with yours. try topping it and replanting the top to help get some light towards the bottom.

as long as you are seeing new leafs pop up on the sword all is well, but if its not putting out new leafs theres a issue which we can later discuss if this actually is the case. as far as the brown spots on the fern leafs maybe a picture could be better? java ferns reproduce by "spores" and they all come from the leafs this may be what your seeing.
 

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Discussion Starter #14
Okay, this is kind of picture heavy.


Here's the top of the Wisteria


One picture of the java fern


Same bunch of java fern at different angle


The other bunch of fern


The Amazon sword (when I got it on Sunday only one of the leaves looked bad)


The big picture thus far
 

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Potassium:Deficiency: Older leaves are initially chlorotic but soon develop dark necrotic lesions (dead tissue). First apparent on the tips and margins of the leaves. Stem and branches may become weak and easily broken.
Toxicity: Usually not absorbed excessively by plants. Excess potassium can aggravate the uptake of magnesium, manganese, zinc and iron.

here is a good link to book mark, this is one reason why you may be seeing but that doesn't mean dose with potassium right away. just keep using your flourish comp at recommended dose and don't get hasty. all plants are going to shed leafs all through their lifespan its natural. personally I wouldn't get concerned until 50-75% of the plant starts showing signs

Symptoms of Deficiencies and Toxicities - Greentrees Hydroponics

and that bulb is perfect
 

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Discussion Starter #18
Potassium:Deficiency: Older leaves are initially chlorotic but soon develop dark necrotic lesions (dead tissue). First apparent on the tips and margins of the leaves. Stem and branches may become weak and easily broken.
Toxicity: Usually not absorbed excessively by plants. Excess potassium can aggravate the uptake of magnesium, manganese, zinc and iron.

here is a good link to book mark, this is one reason why you may be seeing but that doesn't mean dose with potassium right away. just keep using your flourish comp at recommended dose and don't get hasty. all plants are going to shed leafs all through their lifespan its natural. personally I wouldn't get concerned until 50-75% of the plant starts showing signs

Symptoms of Deficiencies and Toxicities - Greentrees Hydroponics

and that bulb is perfect

Awesome, thanks for the link
 
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