Algae and green water

[fish48]

With 10 tanks close to the window during the summer months there is always at least one that will go green and a build up of algae in other tanks
green water can be very beneficial in many ways.
I have some young guppies quite happy swimming in green water however it can a bit difficult to seeing them.
Today I've used some of the green water and put in containers for newly hatched mosquito larvae to feed on I've added 5 - 6 mosquito rafts that will hatch in the next 24-48 hours each raft can produce more than 100 mosquito larvae. The larvae grow quite fast at 4-5 days old they get to a good size to be to fish

 

[Back in the fold]

Summer is the best time of year for the aquarist and this is just one of the reasons why .

 

[Colin_T]

put some daphnia in the green water.

 

[fish48]

yes daphnia is a good way to get rid of green water if fish are removed the daphnia will clear tank water within 3 to 4 days

 

[Lanpenn]

This is interesting. By seeing these egg clutches, it seems to be Culex sp. Mosquito larvae are a cheap protein, but I do not know if it is possible (or allowed) to "culture" this in Brazil, because we have a serious problem with mosquito-borne diseases such as Dengue fever. We already have a Dengue vaccine, but I do not know if it is available in the small town where I currently live (a few months ago, I knew that it was still not available).

When I was still figuring out how to culture brine shrimp in 2012 - 2014 outdoors, I used to try to "create green water". However, it took several weeks, and when the Artemia franciscana hatched, the water became translucent within a few days. The brine shrimp became adults in less than two weeks, when I used to have this water. My friend suggested that it could be Euglena, but I'm unsure, because Euglena is too large for crustaceans to filter (they prefer particles ranging from 10 to 21 micrometers).

When this was the case, the brine shrimp became adults in less than two weeks. Photo uploaded to Flickr on January 10, 2014.

Green and still generating oxygen (note the bubbles above the water). Photo uploaded to Flickr on January 13, 2014.

I tried to replicate it in bottles, but I could not get anything.

 

[fish48]

the UK, mosquitoes are generally not known to carry diseases if they did I would never attempt to keep them

 

[emeraldking]

Overhere as well. Frequently, people who visit me think that it's alarming to have such green water in tanks or even tubs. But I always tell them that this is actually way better for our fish than a total clear water tank. When I still used to keep and breed koi, I had one shallow pond that turned green on purpose. I didn't had to feed those baby koi. They fed themselves with all that was living in there and they grew much faster than if I would keep them in total clear water. I do the same with my livebearers. I don't mind when the outdoor tubs will have green water. I even promote and applaud it...
A number of tanks that are close to the window have green water and the colors of those fish are even better than the ones in clear water.