So does this therefore mean that you avoid the whole problem by not having any (at least visible) mulm and DOM? And clean your cannister filter at least once a month to get any organics out of there too?plantbrain said:...
Regarding mulm and DOM build up.
I'm not sure it's the presence of these, but rather the loading rate.
If the loading raste exceeds the bacteria break down of these, then you'll get BGA or BBA I think also.
Check out his website.. click the link in his signature.robitreef said:Where can we find the details about dosing concentrations and what needs to be added to non CO2 tanks?
Do you also have info on light and photoperiod, size of tank, etc?
Tom, just to add to this I've seen the same analysis done on marine reefs. It seems there exists an intermediate level of nutrition where biodiversity peaks. Below that level of nutrients, you effectively have a desert and sparse growth, above that level one tends to get large mono-specific colonies. Only at intermediate levels (not limiting!) do niches form and biodiversity explodes.plantbrain said:If you have stable conditions, then you start to get one or two species that dominate, if you have intermediate distrubances, you get the highest diversity(much like many FW aquatic systems), if you get extreme disturbances, then you get few species. This is basic ecology (See Joe Connell, UCSB)
I've certainly not read the original article, and I really should be smart enough to keep my arguments within my own realm of expertise, but there is some interesting info on Tropica's site. They reference a study which shows that Myriophyllum species produce Tellimagrandin, a phenolic compound that has impressive algicidal properties on blue-green algae. (Gross, E.M., Meyer, H., and Schilling, G. (1996): Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum. Phytochemistry, 41:133-138.)plantbrain said:You mention very strong inhibitors, needed in minute amounts.........well, if they where that strong, why has no one ever seen this in natural systems even once?
You could argue that only plants capable of keeping algae away could have ever become sucessful aquatic species.plantbrain said:How is it that all aquatic plant species exhibit the same lack of algae?
Do they all produce the same intense chemical?
What are the odds that all aquatic plants(even non Aquatics for that matter) produce the same chemical?
There are plenty of people with tanks full of slow-growing species will little or no algae. I don't think that the growth rate of the plants is the reason behind our improved success in keeping algae at bay.plantbrain said:Healthy actively growing leaves older or younger in terms of the plant?
Time is the issue, most leaves will get crusty(say like some slower growing Anubias, we all know they are more prone to algae) over time, whereas something like Hygro? Stuff grows so fast the algae does not have time to form before being pruned.
Once the new leaves grow above the older leaves, they block a large amount of light. Basically the new growth stays one step ahead of the algae.