15 Gallon Tank Damselfly laid eggs in my 15g that hatched

[AquaRain]

ok, so this is an emergency, i have had a damselfly enter my room that i originally thought was a dragonfly, so of course i released because me personally, i think dragon flys are cool but now i have damselfly nymphs so obviously it wasn't a dragon fly, my shrimps are already being predated on (killed) by these nymphs and i have no idea what medication kills them but also doesn't kill shrimp or fish, i have at least 22 tiny fry 10 of which are balloon molly fry which are very important to me especially because their mother has swim bladder issues that will most likely result in her death but currently she is ok, the other 12 are from my black molly and no i won't be keeping them all but i do want them to survive as most if not all will go into my families tanks and i saved them so they can live and not to be eaten by these nymphs, i have heard that planaria medicine can help but some planaria medicine also kills shrimp, if the best medicine that i can put in the tank is safe for my fish and not for my shrimp than ok i will get it but i really don't want to harm my shrimp, does multicure work?

 

[Lucy]

Oh no!
Can you move the fish and shrimp to a different tank?
Or drain enough water that you can catch the nymphs in a net and dispose of them?

 

[AquaRain]

Oh no!
Can you move the fish and shrimp to a different tank?
Or drain enough water that you can catch the nymphs in a net and dispose of them?

unfortunately no i asked my mum and dad and they said that the quarantine tank is too small for them
im hoping that my dad will help me remove all the decor and siphon them all out but i worry that my fish get too stressed, i used to have a 10g but its light broke and the filter i assume isn't working anymore.... i have caught and killed 8 but they are so hard to spot, i love all my fishes and it would hurt me so much if anything happened to them
he also doesn't think that the damselfly nymphs will eat the fry which i am frustrated by as from what i know they definitely will although they are going for the shrimp first....
i also have a betta in this tank but he doesn't hunt the fry as much, he rarely does... i mean he is interested but yeah the fry survive but my other betta rainbow and his corydoras i don't think will leave the fry alone....
my other worry is that there might be damselfly nymphs in my other tanks too as they are right next to each other but my 40g has mainly adult fish so i think they would be fine but i am still very scared that i won't be able to get rid of them before they eat my fry, I've heard they are hardy but i really want there to be a medicine that i can add that is safe for my fish that kills the nymphs

 

[Lucy]

How about vacuuming them out? what size is the tank?

 

[AquaRain]

How about vacuuming them out? what size is the tank?

its a 15g
i don't trust doing it myself so i am wanting my dad to help me
if anything goes wrong i usually blame it on myself....
the number is now 9

 

[Lucy]

Maybe such them out one by one with a turkey baster?
Not the one your Parent uses in the kitchen (they wouldn't appreciate that!). Get one you only use in the aquarium!

 

[AquaRain]

Maybe such them out one by one with a turkey baster?
Not the one your Parent uses in the kitchen (they wouldn't appreciate that!). Get one you only use in the aquarium!

whats a turkey baster?
i caught and killed another one just now so its number has increased to 10
do you think i should just go for it and remove everything and start vacumming/siphoning them out? from what i have heard it is the best option but i am so scared that my fish will not survive the stress, they will be put into a bucket with water of course while i do it
they just woke up so i will let them eat first

 

[Lucy]

https://www.amazon.com/Heat-Resista...hvlocphy=&hvtargid=pla-4583451671510003&psc=1

 

[AquaRain]

oh yeah we definitely don't have those...

 

[Lucy]

you can get them at the dollar store, pretty cheap.
They're good for quick clean ups as well.

 

[AquaRain]

you can get them at the dollar store, pretty cheap.
They're good for quick clean ups as well.

ok, i doubt my parents will buy them for me though, they are already against doing the clean up which i know is a must, my tank is full of decor and plants that i would have to remove everything and put all the fish out of the tank temporarily, they are always saying to find something to put in the tank that kills the nymphs but also is safe for the other fish...

 

[Lucy]

You won't have to remove everything.
Just squeeze the bulb, stich the baster in the water near the nymph and release the bulb, It creates a suction.
Suck em right up!
It's a lot cheaper and safer than meds.

 

[AquaRain]

You won't have to remove everything.
Just squeeze the bulb, stich the baster in the water near the nymph and release the bulb, It creates a suction.
Suck em right up!
It's a lot cheaper and safer than meds.

i just talked to my mum, she said she will order it and she thinks i can do the water change but she does not want me to remove all the decor, the nymphs are under that decor....
i feel like medicine would be easiest, that way the fish don't need to get stressed, she is going to bunnings so she said she will look to see if she finds something, in the meantime, she i just remove the middle decor so that the water change will be easier? and then afterwards put it back and tack the other out to see if there are some in it too?

 

[Fishfur]

Using a net or a baster is a better way to catch the damselfly larvae but there is one potential treatment that is reported to kill them but won’t hurt fish and isn’t supposed to harm snails, but there’s no info I can find about the effects, if any, they might have on shrimp.

Mosquito dunks that are used in ponds to kill mosquitoes, ( they also kill fungus gnat and black fly larvae) are reported to kill both dragonfly and damselfly larvae but this is not in the label. If you wanted to try it then it would mean buying a mosquito dunk.

They are not a poison, have no effect on people or dogs or cats etc., they work by releasing particular bacteria (Bt) which infect the larvae and kill them. Bt is said to be harmless to most organisms other than insects and it has even been engineered into some crop plants to deal with some pest insects.

May be worth looking into.

 

[AquaRain]

Using a net or a baster is a better way to catch the damselfly larvae but there is one potential treatment that is reported to kill them but won’t hurt fish and isn’t supposed to harm snails, but there’s no info I can find about the effects, if any, they might have on shrimp.

Mosquito dunks that are used in ponds to kill mosquitoes, ( they also kill fungus gnat and black fly larvae) are reported to kill both dragonfly and damselfly larvae but this is not in the label. If you wanted to try it then it would mean buying a mosquito dunk.

They are not a poison, have no effect on people or dogs or cats etc., they work by releasing particular bacteria (Bt) which infect the larvae and kill them. Bt is said to be harmless to most organisms other than insects and it has even been engineered into some crop plants to deal with some pest insects.

May be worth looking into.

ah ok, yea i will definitely look into that, i think i might go ahead and do the water change, although i am scared that i might get a baby vacummed i know that it will probably help...
Mosquito Summit Dunks (6 Dunks) : Amazon.com.au: Garden

is this it?
finished the water change, i removed the 2 decor that i thought they would be hiding by the most and siphoned/vacuumed the area, i vacuumed/siphoned most of the areas and i put in 3 buckets of water afterwards, im worried about my balloon molly as she is stressed but there is really nothing i can do.... and apparently the pump in the quarantine tank is not functioning properly as it is sucking in water instead of pushing out water and thats why i couldn't add any of the fry there as they would get sucked up which makes sense to me anyway i did the water change and now im just waiting for the baster and the mosquito dunks but yeah, i guess its just a waiting game now until i get the baster and the dunks, if i see another one of those nymphs i will be sure to catch it
the number has increased to 11