I feed mosquito larvae as is, live, to my fish with no ill effects. When fed, fish that are shy suddenly are not, at least until the larvae are gone.

 

Why do you want to freeze them? part of the fun in feeding live mosquito larvae is watching how excited the fish get over live food. Past few years I had a bin in my backyard I deliberately let catch rainwater and grow mosquito larvae for the fishes. My method was to individually catch the larvae out with a straw (hold finger over one end, creates a tiny siphon effect). Then I take the container in the house, fill a new small container with tank water, siphon out the individual larvae again into the tank water, twice. So instead of picking out the junk, I'm picking out the larvae. Ends up pretty clean but does take a bit of time, though.

 

I've fed mosquito larva from my yard before, no ill effects. Not really sure what kind of parasites they would carry...

 

Live is the only way! Wow do the fish love them. Even the shy fish come out of hiding and go into hunt mode.

 

If you REALLY want to...

My preference is to rinse them so any gunk doesn't get into my tank, but I've done it both ways.

I have never ran into any problems from it, but someone else probably has! One comment on the video mentioned callamanus worms. yuck.

 

Man. I can just imagine a bunch of these going down into my mess of plants and waiting it out until they're good and ready to surface. Then its mosquito raid on the humans!!

Freezing sounds more sensible to me.

 

Don't think you'll have to worry. Larvae and Pupae have to surface, and they're not very graceful. And even then, new adults need to sit on the surface to dry out their wings. I'd be quite surprised if you had any flyers emerge.

I wonder if the surface tension from a heavily planted tank with little flow is enough to keep mosquito larvae from reaching air.

If you REALLY want to...
I have never ran into any problems from it, but someone else probably has! One comment on the video mentioned callamanus worms. yuck.

Man, you had to say "Camallanus worm". Now i'm worried about my fish, and if they're over fed or infected. I've done research since i read your comment, and i'm willing to bet my foolish additions of wild pond plants and critters has introduced this issue. One article said almost always found in wild daphnia. Shoot.

 

I do it all the time on multiple tanks. Never had any issues with parasites or worms. But I don't go down to the neighborhood slough, I grow my own on my property.

I harvest the bloodworms for my bottom dwellers and the mosquito larvae get eaten by any mid-level or top level fish.

 

I collected a slew of wild dafnia, mosquito larve, random things, etc.

I fed to one of my tanks for about a month.... till something strange happened: Cyanobacteria and E-coli infection. I was devastated. I now culture IN the garage for my live food, I culture: vinegar eels, dafnia, microworms, grindal worms, brine shrimp.

Note: The city has since Shut down the lake due to the high levels of bacteria...... Most popular beach in the city and no one can swim in it.
Took a few doses of antibiotics to remove it. I lost a fish and a bunch of plants

 

I fed my tank a ton of mosquito larvae the other day. My fish went nuts! And what i thought was too much, was all gone within the minute. I can't wait to do it again.
Which brings me to a question. The video posted here shows some water cleaners, health stuff, etc.

Is there a way to gut load these guys? Could i suspend them in a high nutrient liquid for an hour or so before feeding? I gut load our feeder insects before feeding them to anything i have, would this work with the larvae?

 

You can feed them spirulina.... but heads up- they eat, and then grow up!

 

Mosquito Larvae eat Algae and plankton. Honestly, I have no idea. Maybe transfer them to a spirulina green water mix for a day before feeding them, but that sure seems like a big hassle.

They are already highly nutritious. I would just put them in different water if you're collecting them from "wild" sources since you don't know what is in the water they are coming from.

 

You can feed them spirulina.... but heads up- they eat, and then grow up!

Thank you guys for the suggestion. The larvae i feed my fish come from my very own plant culturing tank on my back porch. I was gonna perhaps even dose the culture tank.

 

I just use a net, dip them out of the livestock trough and add them to the tank. And watch the feeding frenzy commence. I would be more cautious about taking larvae from a natural body of water as there is a greater risk of adding something inadvertently that I don't want in the aquarium.