simon_the_plant_nerd
Member
It’s about 15-18mm long. Living in my heaterless, low tech nano.
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He’s in a Pyrex dish currently, on his way to the garden pond to live his life to the fullest. 👍🏻Damselfly or dragonfly larvae.
It will eat shrimp and small fish.
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It is a swimming Mayfly Nymph, almost certainly the "Pond Olive" (Cloeon dipterum).Damselfly or dragonfly larvae.
This one is harmless, but fish really, really like them.It will eat shrimp and small fish.
Well he’s come out of my algae and detritus filled, fish free nano and is now in my pond with swarms of minnows. Oops. 😖It is a swimming Mayfly Nymph, almost certainly the "Pond Olive" (Cloeon dipterum).
This one is harmless, but fish really, really like them.
Cheers Darrel
The females are attracted to light, so you <"occasionally get them in fish-tanks">, even inside. Most Mayflies need really good quality, highly oxygenated, cool water, but the one species (the <"Pond Olive">) is a lot more <"tolerant of warm water"> etc.Mayfly nymph however is a better search that shows exactly this.
When scientists are <"looking at water pollution">, in both natural and wastewater situations they use <"bioassay organisms"> as the <"final stage of water assessment">. <"Asellus aquaticus"> and Crangonyx pseudogracilis are fine as <"tolerant organisms"> but we can't use <"Gammarus spp.">, Mayfly (Ephemeroptera) or Stonefly (Plecoptera) nymphs in the tank as "sensitive organisms" (due to the temperature effect on dissolved oxygen availability).
A newt larvae. Have you received any plants from a pond recently? Newts wrap their eggs in plant leaves.View attachment 219184
Part 2 - What’s this? Active after lights out, moves like an amphibian, about 15mm to 20mm long.
I’ve got some hair grass which came from my pond. Also collected some leaves and sticks from the local river.A newt larvae. Have you received any plants from a pond recently? Newts wrap their eggs in plant leaves.
I think he might have very tiny front legs but couldn’t see any back ones.Awesome! That's a newt eft. Really cool.
*Edit: not quite an eft yet- doesn't look like it's got legs + it's too early.
Probably a Smooth or Palmate- definitely not a Great Crested.