|01-05-2013 11:59 PM|
|caoder||fyi im growing hc that was a rescue from my lfs with only a few leaves without a problem in my 10g with a 13w in a desk lamp|
|01-05-2013 11:20 PM|
Very nice explanation.
|02-19-2012 03:04 AM|
|radioman||Perfect explanation Hoppy.|
|02-17-2012 03:32 PM|
If the plants don't have enough nutrients to grow as fast as the light is driving them to, they will not be healthy plants. And, the less competitive plants may just give up and die. Unhealthy plants and dying plants are prime real estate for algae colonies to grow on. So, bad algae problems are a primary reason why "too much" light is too much.
Another reason is the increased maintenance required to keep a high light tank healthy. First, the rapid plant growth can quickly create a dense mass of plant matter, which stops water circulation in the tank. But, it is water circulation that brings the nutrients, especially CO2, to the plants. Without good circulation many plants will starve. High light means lots of pruning required - when I had high light I had to prune twice a week.
High light also means keeping the tank, the water and the filter as clean as you can, also to avoid encouraging algae to begin growing. And, it means constantly tinkering with the CO2 system to keep a good level of CO2 in the water even with the constantly changing conditions in the tank. It makes a hobby become a job, something some of us soon tire of. It isn't just plants that grow very fast with high light - algae also grow very fast. You have a much shorter "window of time" to correct conditions that lead to algae starting if you have high light, where with lower light you can wait awhile before having to correct those conditions.
The good news is that "high light demanding plants" really demand good CO2 much more than they demand high light. If you limit the light intensity to 40-50 micromols of PAR, and supply CO2 as if you had high light, you can grow virtually all plants, including HC very well, just slower. And, you don't find yourself tied to a planted tank job instead of a planted tank hobby.
|02-17-2012 12:47 PM|
|EnigmaticGuppy92||i would set up a diy co2 system with the high light|
|02-17-2012 06:23 AM|
|aquariumnewb||My goal is to grow an HC carpet, which to my understanding, requires high light. So your thought is that excel doesn't give sufficient carbon for this? Thanks!!|
|02-17-2012 06:02 AM|
|VivaDaWolf||Aside from algae, why is it that bad to have so much light like that?|
|02-17-2012 04:41 AM|
|epiphany||Replace that 30w bulb with a 10-13 watt bulb and you'd be a lot better off.|
|02-17-2012 03:31 AM|
|Hoppy||Excel isn't sufficient with high light, only with low to low medium light.|
|02-17-2012 01:50 AM|
|aquariumnewb||Is Excel sufficient for CO2 dosing?|
|02-17-2012 01:42 AM|
|Hoppy||You can't do a "low tech" tank with high light. High light requires CO2, good fertilizing, very good water circulation in the tank, good surface rippling, etc. A 30 watt CFL bulb is going to be high light on that small tank.|
|02-16-2012 11:18 PM|
Hi everybody, I recently purchased a MarineLand 5g tank (which comes with LED lights, which research told me has 16 x .1 watt bulbs). Although I use aquarium gravel substrate, I prefer the look of a heavy-planted tank, so I know I need a high-light aquarium.
I began to shine my desk lamp, which has a 30W bulb (a spiral shaped, screw-in bulb). The light is a strong white color (which, based off my reading online, seems to be a higher temperature color, >8000). So my question is, do you think this bulb provides sufficient light at the spectrum for high-light plants?