What Are These Red Bugs?

[Merebere]

Hello,
(I apologize if this topic has already been discussed, but I couldn't find it)

I was feeding my fish today, and I saw what I thought was leftover food floating on the top. But this "food" started to jump! They look like little red bugs! They are an orangy-red colour. They are no bigger than the size of the head of a straight pin (maybe even a little bit smaller), and they float on the top of the water of my freshwater tropical aquarium, jumping and almost striding across the surface of the water.
I wanted to know if they can be of any harm to my fish, or plants...

My Aquarium info:
I don't have any tests for my water unfortunatly...but I do a 10-15% water change once a week. I use a store brand clorhine remover.
10 gallon
- 4 swordtails
- 2 guppies
- 4 neon tetras
- 1 dwarf pleco
I have some live plants, but none that are floating that the "bugs" would live in..
** btw.. I recently had a fish with ich in the tank, I treated it, and it is healthy again (just in case that has anything to do with the bugs)

I've had aquariums all my life, but I have never seen anything like it, any help would be great!
Many thanks!