Microscope ID

[Greyhound]

Finally got a proper microscope. There are so many things to see in this tiny sample of gunk from my tank!
1. I believe "plant" material algae as far as I can tell?
2. may be cyano?
3. Diatoms
4. Dino? Cant tell what type
5. Some type of very active worm
6. Flatworms

Let me know if these are correct and help with the ones I dont know. Thanks!

 

[paraletho]

Pretty good on your ID’s. #1 also has a couple diatoms I have heard them referred to as pizza slice type. I would think the Dino is probably Ostreopsis it looks nothing like the Prorocentrum I have been dealing with. The skinny worm is probably a type of nematode. The big worms?