Algae and the plant

In this picture the long structure is the green algae and the green color part is actually the cell of vallisneria leaf, in this picture we could see how an algae has been attached to the plant

Water mite

Water mites are also known as Hydrachnidia.This was found in the leaf of amazon frog bit (a type of aquatic plant)

Cosmarium

Cosmarium (genus name) is a type of green algae

Thread algae

Thread algae is a type of green algae which will be long and filameous, which appears like a thread

Hornworth

This is a image of a single leaf of hornwort plant (an aquatic plant)

Aquarium nematode

Found this little guy in a pinch of aquarium algae. Best I can tell as a layman using https://nematode.unl.edu/nemakey.htm#38, this belongs to the genus Mononchus. They are predatory, consuming other microscopic animals including other nematodes, but apparently not parasitic (good news for my fish tank).

Cabomba plant

This is the picture of secondary laterals of cambomba plant

Tardigrade

This is the picture of tardigrade, It was first time seeing a tardigrade be me, This tardigrade was seen in the leaves of salvinia , a type aquatic plant

Freshwater Aquarium I̶n̶s̶e̶c̶t̶ Water Mite

I used a syringe to remove a sample of sand substrate from the bottom of my freshwater aquarium. The splotches of granules around the bug are grains of sand. I saw a total of 3 of them from a total of 3 samples. Anyone have any idea what kind of bug it is? I’m guessing it…