Jump to content


Photo

Minnesota aquatic plants


  • Please log in to reply
30 replies to this topic

#21 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 05 April 2016 - 05:53 PM

They have different spectrums

#22 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 05 April 2016 - 05:57 PM

How many k is 15 watts?

#23 gzeiger

gzeiger
  • NANFA Guest

Posted 05 April 2016 - 08:25 PM

That's not what K means at all. The K value describes the color. Technically, it's the color of light that would be emitted as blackbody radiation by an object of that temperature on the Kelvin scale (Celsius temperature plus 273.15 degrees).



#24 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 05 April 2016 - 08:57 PM

So what is the K rating, it doesn't say

#25 lilyea

lilyea
  • NANFA Member
  • Peace River Watershed, Central Florida, USA

Posted 05 April 2016 - 09:09 PM

Okay, I won't have Co2 and my light options that I own are these two

http://www.amazon.co...h/dp/B000YJ45XU

http://m.drsfostersm...fm?pcatid=12850

 

15 watts is related to energy use.  You are better off paying attention to lumens (if it is listed) for the light output and realize that the light output scale is different from the light color scale.  Both the amount of light output (lumens) and the color of the light (Kelvin) are important to growing plants.  Like others have mentioned 6700k (kelvin) is your target for freshwater plant growth (for comparison the warm or yellow lights that you may have in your home is probably closer to 3200 - 4000k and the blue-ish lights that you will often see in a saltwater tank often ranges from 10000k to 14000k or even 20000k).

 

The bulb from Amazon is marked as an Aqueon "full-spectrum daylight" in the title, but the image shows an Aqueon "floramax" so that makes answering your question a challenge.  The specs on these bulbs are listed in nm (or nanometer) instead of k (or Kelvin) so it makes the answer to your question a little bit more complicated.  The nm and kelvin scales are two different but very loosely related scales.  My understanding is the 650nm is roughly comparable to 4000k and 500nm is closer to 6000k (yes, the number in the two scales go opposite directions).  It has been suggested that 6000-7000k is best for plant growth and 4000k is better for flowering.

 

Based on the specs from the Aqueon website the Floramax is strongest around 450nm and has a separate spike at about 640nm (this bulb appears to focus on plant growth with a spike in the flowering zone) as opposed to the Aqueon full spectrum bulb that has a broad range and is strongest toward the 600nm (or more toward the yellow).

 

Summary: Between those two bulbs, go with the floramax.  If both bulbs are the full spectrum daylight the decision is even easier until you can replace it with a 6700k bulb.



#26 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 06 April 2016 - 12:24 PM

Okay, I was thinking of using only the plants from the 20 x 20 area I collect from to make it as NATURAL as possible.

#27 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 07 April 2016 - 08:42 PM

Possibly collecting April 15-17

#28 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 21 April 2016 - 12:36 PM

I'm going collecting Friday Saturday and Sunday. Hoping to get coontail, chara and other plants, also 2 gallon bags of sand

#29 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 24 April 2016 - 07:44 AM

I got 2 gallons of sand, tons of coontail or watermilfoil, 3 red jagged rocks for my 10 gallon and 5 rounded brown rocks for my 5.5

#30 WheelsOC

WheelsOC
  • NANFA Member

Posted 24 April 2016 - 08:14 AM

Water milfoil is easy to distinguish from coontail if you look closely.

 

Typical water milfoil leaves: http://www.mainevlmp...icatumWhorl.jpg

Each "whorl" has four very regular leaves with a central stem and "fingers" coming off to either side.

 

Coontail: https://plants.ifas....dem/cerdem2.jpg

Each "whorl" has irregular numbers of irregularly-forking leaves.



#31 9darlingcalvi

9darlingcalvi
  • NANFA Guest
  • Moorhead,MN

Posted 25 April 2016 - 07:20 AM

It's coon




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users