light help please!
i saw this light at my LFS and was wondering if it would be good to replace my generic out of the kit light. it was a 50/50 6500K w/ actnic. would that be good for plants?
the kelven is good but actnic uhm thats more for freshwater. your out of the box light is probobly around 3000k just like any other standard household light. you want to aim for something between 5500 and 6700 kelven and look for really high bllue and red since the plants need those spectrum more blue than red to go through photosenthisis and do what they do. your also going to want atleast 2-3 watts per gallon even for most low light plants to be healthy along with a regular fert dosing schedule. Money
I agree (except on the wattage) with MoneyMitch; actinic does not promote good plant growth, it is a saltwater light [I think that's what MM meant when he typed freshwater].
I would not go above 1.5 watts per gallon without CO2 added, which you don't mention. I have about (or less on the 115g and 90g) than 1 watt per gallon of full spectrum 6700K light on my three larger tanks and the plants are thriving as you can see in the photos under My Aquariums. The light must balance the available CO2 and nutrients or algae will proliferate. The light should always be the limiting factor, never CO2 or macro- and micronutrients. Plants cannot use the light if it is in greater supply than the CO2 and nutrients, and this refers to intensity, not duration; duration beyond a certain point is meaningless if the light is not of adequate intensity and again encourages algae.
Light light light
I am so not sure there is an actual rule of thumb on lighting
Given an example I had a 30 gallon tank with a light that had 18 watt
the KV was unknown.... The bulb didnt say and my plants FLURISHED
The plants that are in my 120 gallon came from the 30 gallon
I have read alot of information on planted tanks and the info you stated
is Dead on what I have read..... but I can also say that its not the Rule of
Byron.... do you use LATERITE? or any other substrate to enhance the
growth of your plants?
I use regular gravel, wth Nutrafin's Plant-Gro sticks next to the larger Echinodorus (swords) which are heavy feeders. I use Seachem's Flourish Comprehensive Supplement for the Planted Aquarium twice weekly (down to once in the 90g currently as the fish load is less and that balance I spoke of is a bit out) and i've noticed some plants reacting to an excess of certain nutrients. In 1996 I set up my 1125g with laterite under the gravel, but saw no difference in lant growth during the following 3 years from the 90g that had identical light, fish load, plants, but no laterite. It may not hurt, but adding nutrients to the water column from a substrate or substrate additive that cannot be removed without tearing down the tank has a risk factor I prefer to avoid. The sticks work fine; I first put in 3 or 4 next to specific swords, and after 3 months the growth of those plants by comparison to the other identical species was remarkable; the plants were 3 times the size (leaves).
my specific needs... a ten gallon freshwater tank. just bought CO2 injector like with tablets and am hoping to get java moss, java fern, dwarf hair grass, and mabye hornwort. what is you suggestion?
You have helped me out in the past ..... and If I knew about the sticks ( that you use )
I would have never have used the laterite substrate..... ( ITS A PAIN )
but thats just me....
I will say this to any one else that asks. When I set up another tank.. ( ANY SIZE ) I
will not use LATERITE OR FLOURITE
Here is a website that will help everyone wanting to grow live plants.
this website gives alot of information on alot of different plants.
Google Image Result for http://naturalaquariums.com/plants/hornwort2.jpg
The Planted Tank: The Planted Tank - Articles, Forums, Pictures, Links
Aquatic Plant Central: Aquatic Plant Central
Aqua Botanic: Aqua Botanic Aquarium Plants Sales and Library
P.S. Just noticed I typed 1125g instead of 115g in a prior post; wish I had a 1125g tank...
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