Hello and observation about mosquito larvae
This is my first post so I will offer a little introduction. My name is John Geanangel and I am a long time aquarist...40+ years. At one time or another, I have worked in all aspects of this hobby...from LFS, Wholesalers, maintenance, and even worked weekends on a fish farm. But, for the last 15 years I have only been a hobbyist. Currently I am maintaining 6 fw tanks all with plants, all low tech.
I love to feed my fish mosquito larvae! I also grow bonsai trees and have a number of vessels in my garden that maintain some water and serve as great ML hatcheries. I collect these and treat my fish...they love it.
So, here is what I have observed...I had some extra "dwarf" water lettuce that I placed in several containers earlier this year. Without exception, these containers have seen a 99% reduction in ML. The water lettuce only covers the surface completely in one of these containers...the rest have a 20-40% coverage...effect is the same...no larvae???? All containers without the lettuce continue to produce ML the same as in years past.
Does water lettuce contain some natural inhibitor to mosquitoes? Has anyone else noticed this or know a reason why it might be happening?
Thanks for your feedback!!
as a side note...my "dwarf" water lettuce only seems to be dwarf when grown in an aquarium...outside it seems to reach a size of at least 80% of normal variety...is this typical??