Can you please tell me what this is!!

BENNO

Member
Dec 5, 2010
211
0
16
Central coast, nsw
O WOW fancy finding that in your tank i would try a
plant and insect forum post a few pics and see what you can come up with
has it made any difference to your tank is your parameters ok?
 

bigbird

Pleco Profiles Moderator - RIP FRIEND
Sep 9, 2010
6,306
1
36
Sydney, AUSTRALIA
wow, must have been brought in with new plants or layed in the water by the insect. Looks like an underwater worm or caterpillar. cheers jk :thumbup:
 

Joby

Retired Staff
Aug 9, 2009
2,068
0
36
59
West Midlands
I once had a dragon fly larvae in my tank which came in on some plants. At first I noticed a few small guppy fry going missing (yes I had guppies when I first started fishkeeping :whistle: ) till they were all gone and then one day I noticed an adult guppy with an eye missing :cry: and as I put the light on to feed them this ruddy creepy thing flew across the tank. It was over an inch long and had obviously been feasting on my fish :wb:

yours doesn't look like the one I had but ewwwwwwwww all the same I would get it out and inspect the tank for more :yes:
 

dw1305

Global Moderators
Staff member
May 5, 2009
1,396
0
36
Wiltshire nr. Bath, UK
Hi all,
Definitely not a Dragonfly nymph, it might be a Caddis (because of the case of plant fragments), but I think it is most likely to be an aquatic moth caterpillar.
I'm pretty sure it won't bother your fish.

Something like a China-mark moth, this is the "Small China-mark", really common in ponds in the UK.

<http://ukmoths.org.uk/show.php?bf=1354>

cheers Darrel
 

AndyEllard

Member
Jan 27, 2010
275
0
16
Leamington Spa. UK
Hi all,
Definitely not a Dragonfly nymph, it might be a Caddis (because of the case of plant fragments), but I think it is most likely to be an aquatic moth caterpillar.
I'm pretty sure it won't bother your fish.

Something like a China-mark moth, this is the "Small China-mark", really common in ponds in the UK.

<http://ukmoths.org.uk/show.php?bf=1354>

cheers Darrel
Thanks Darrel, That does look quite a bit like it (the only difference is that it is a lot lighter in coulor) I have taken it out of the tank anyway).

I might keep it in a container to see what it turns into as I am curious.