What Is This Creature?

Dooni

New Member
Member
Messages
2
Reaction score
1
Location
San Francisco, CA
Experience
Just started
Hello. I have a bladder snail tank and a few days ago I wasn't seeing as many snails running around and I noticed a bunch of empty shells. I was scooping the shells out and I noticed this little guy (pics attached). I have no idea what it is or how it got into my tank or if it was eating my snails. It seems to walk pretty slow, but it swims really fast and in a snake/eel like motion. It uses its front legs like a praying mantis does, but doesn't keep them in the "boxing" stance. Any information would be great, thanks!
 

Attachments

GlamCrab

Well Known
Member
Messages
1,297
Reaction score
851
Location
Canada, Quebec
Experience
3 years
I know its a nymph of something, but I don't know if its a dragonfly or something else, sorry.
 

JoeCamaro

Well Known
Member
Messages
931
Reaction score
749
Location
Florida
Experience
1 year
chromedome52 said:
Not a Dragonfly nymph, it is a Mayfly nymph. Does not get as big, and eats primarily detritus and algae, unlike the predatory Dragonfly larva. The three filaments identify it as Mayfly, according to the . Follow that link to an explanation of the difference between the two.

And you are not going to have "hundreds" show up in your aquarium. It is uncommon to see even one. They usually come in on plants, or with wild collected live foods such as Daphnia. Large fish do like to eat them, they are often used as Trout bait, and artificial trout lures are made to resemble them, among other insect larvae.
I learned from chromedome52 that this is a Mayfly nymph. See the quote above.
 

Demeter

Fishlore VIP
Member
Messages
6,852
Reaction score
4,813
Experience
5 to 10 years
Mayfly nymphs look a fair bit different, they are refereed to wrigglers and often used for fishing. They have these feathery gills running along either side of their body, and this nymph does not have those. That looks like a damselfly judging from the forked tail.
 

Ms rose

Well Known
Member
Messages
633
Reaction score
277
Location
Massachusetts
Experience
Just started
GlamCrab said:
I know its a nymph of something, but I don't know if its a dragonfly or something else, sorry.
Could either be a drogonfly nymph... bad
Or
A mayfly nymph... not bad
 

SFGiantsGuy

Well Known
Member
Messages
1,087
Reaction score
388
Location
Colorado
Experience
More than 10 years
I had a nano with one of those once, and one day he just...disappeared...guess he finally grew up flew the coop! Shouldn't be a major issue at all.
 
  • Thread starter
  • Thread Starter
  • #8
OP
D

Dooni

New Member
Member
Messages
2
Reaction score
1
Location
San Francisco, CA
Experience
Just started
Thanks guys! I did some looking up after you told me it was a nymph. I think it is a damselfly nymph. The mayfly nymph isn't as slender as this one is. Damselfly nymphs, as well as adults, are predatory, which would explain my snails disappearing.

I already moved my snails since I didn't know why there were so many empty shells, but the baby bladders are so tiny, I couldn't move them.

Thanks so much for the prompt help!
 

New Threads

Similar Threads

Follow FishLore!

FishLore on Social Media

Online statistics

Members online
103
Guests online
2,566
Total visitors
2,669

Aquarium Photo Contests

Aquarium Calculator

Top Bottom