interesting observations for those into the science of things

for ~science~ reasons, i made an ecosphere from each body of water on my family's property- one is a creek, one an approx. 40x30ft pond that has little to no shade (pond 1), and one pond of a similar size that is high shade (pond 2). all 3 are very well established and natural bodies of water, and are relatively near each other. what interested me is i haven't found a single snail/mollusk or planarian in pond 2, and a significant population of biting midge larvae.
in pond 1, my sample consisted of non biting midge larvae, and had a significant amt of pea clams, pond snails, bladder snails, and planaria.
i have heard tales of the universality of scuds, but haven't spotted one out of the 3 water sources.
from the creek came only snails and caddisflies.

why is pond 1 so popular with the macros? most of these creatures prefer shade as i understand it. does the high shade of pond 2 make it lower oxygen? or is this just a coincidence?

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u/Accurate-Pay-7006 — 4 days ago

made a new gallon pond jar today

seeing lots of worms and water mites so far! tank contains what i think is musk grass, and watercress i picked up from the creek.

u/Accurate-Pay-7006 — 9 days ago

who dis guy

*watch the whole thing or skip through to see how he swims* he's def shaped like a damselfly but he's so tiny!! he's also very into light. when i turn on my lamp he sits right where it shines in the tank.

u/Accurate-Pay-7006 — 30 days ago

mayfly or aquatic beetle larvae?

as u can see he's slow and docile. first saw him about 2 weeks ago i always think he might be does but he starts slowly crawling around again. this is apparently not characteristic of mayfly or damselfly larvae.

u/Accurate-Pay-7006 — 1 month ago

is anyone interested in purchasing some pleurocera

they are seriously beautiful. they have some purple coloring that isn't shown in the pics and bright orange mouths! they are plant eaters if u don't feed them enough, so beware. so cool and amazing to watch. i just really dont have the space for them and prefer my bladder snails. quantity and cost can be worked out by messaging me but i believe i have about 10 adults!! largest is about 1 inch long. i also have over a dozen babies.

u/Accurate-Pay-7006 — 2 months ago

biggest hydra i've seen!

sorry for dumping posts, but i figured
you guys would wanna see this! he must be over an inch long if you include his tentacles!!

u/Accurate-Pay-7006 — 2 months ago

please help me identify this species of snail?

who are these guys??? as you can see theyre all black but have orange upper lips. Found in East Tennessee creek. The first one is covered in silt but they are all smooth and black.

UPDATE:
It's a pleurocera gabbiana! i used this key:
Dichotomous Key

u/Accurate-Pay-7006 — 3 months ago
▲ 4 r/snails

please help identify these snails living in a tennessee creek

they're all the same and there are hundreds of them in our creek. they all have orange mouths like in the first pic and they're all black. the second one pictured is the largest in the tank at about 1.5 inches

u/Accurate-Pay-7006 — 3 months ago

what the heck do i do now!

that is a pea clam, confirmed. there are 2 others of the same size and an older one. do i need to ditch this jar, or is there any possible way of keeping these guys alive in here???

u/Accurate-Pay-7006 — 3 months ago

Calcium Phosphate deposits

I wanted to share something cool and see if anyone has any further insight into the consequences of this process !
when I added an aquatic plant into my jar, I wanted to anchor it so i dropped a shell i'd collected earlier on it, partially to provide my lil snails with some extra calcium :-). A couple of days later i noticed this creamy-white flaky scaly stuff around the shell. I was rly weirded out but I remembered calcium and phosphorous mix to make calcium phosphate, and I believe this is what i'm looking at!!! Clearly, I had a high level of phosphates in my jar and i'm hoping this process could help with algae, diatoms, and providing my creatures with a healthy environment. Calcium Phosphate is not soluble by water so i don't have to worry about it leaching back into the water.

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u/Accurate-Pay-7006 — 3 months ago

okay what is this

this was not in my jar when i left 3 days ago, the leaf has been dead for awhile so i dont think its coming from that. if u can see, it is also at the top of the leaf rather than the base, where the stem would be.
if u need more info lmk. i'm getting pretty good at identifying things on my own but i can't even begin to describe this thing? lol

u/Accurate-Pay-7006 — 3 months ago

is this a copepod??

pls ignore the sound. it is copepod shaped but seems to have fin like appendages?

u/Accurate-Pay-7006 — 3 months ago

Identify creatures with me!!!

I have no clue what the first worm is. I think the second, thin one in the same clip is a tubifex worm that isn't wiggling in the silt (get back to it ur on the clock!). I believe the little blue guy is a water mite. I also have a few planarians ominously swarming a baby snail. the last clip shows more detail of the little guys in the jar. i'm not good at identifying the tiny ones and i don't have a macro lens, but i think i have ostracods, water fleas, and i have seen a couple copepods.

u/Accurate-Pay-7006 — 3 months ago

how cooked are the bladder snails in here

this is my second attempt at an ecosphere, the first was a creek sample that died in 2 weeks, mainly bc i accidentally left it outside when traveling i think, and bc at the time the weather was harsh and going from 80 degrees to freezing.

Anyway, this time i took a sample from a pond! i appear to have one adult bladder snail (in the video he is skimming the surface) and several little babies. as you can see, there are LOTS of ostracods.
last night i noticed approximately 10 little white worms on the glass and was interested to see what they were. i found out they're planarians. i also had a little snail leech. i panicked, i know we're supposed to let the jars run their course but my adult snail was getting plotted on and it made me cringe to see, so i took out all the planarians i could find with tweezers, being as careful as possible to get them in one piece, or take all the segments out. i also got the leech. the rest ran away (i guess they're smart!) ive see a few still in there coming and going. Ik ostracods have a rep for harrassing snails, and planarians are some of their biggest opps. do you guys think i did damage to the flow of the ecosystem? and do you think my snails stand a chance in this environment, now that there are less planarians?

u/Accurate-Pay-7006 — 3 months ago