My Betta tank has little white bugs

Hello!
I am on my second Betta fish and my last one died about a month ago. About a week before my last one died, I saw these tiny white bugs crawling around on the tank walls and although I did a 100% water change, they still showed up a few days later. Unfortunately, I am pretty sure they became internal parasites because my fish completely stopped eating and his poop became stringy and white (classic signs of internal parasites) and I believe this is what killed him. Now about a week after getting this new Betta, I see the exact same bugs in his tank and it is really scaring me because I am terrified this will kill my new fish too. I actually looked at the bugs under a microscope, found 2 different kinds, and have attached the links to pictures of what I saw.
Please help if you can...
My tank is 2.5 gallons with filter and heater!

 

I would treat with some prazipro for the worm like things....the bottom pic is hard to see, looks like it may be something like ich, but I'm not sure.

 

Is your tank cycled? Do you have a test kit? If so, please post your water parameters. What kind of food and how much do you feed your Bettas? The first picture looks like detritus worms possibly.

Welcome!

 

Thank you for replying! I don't think it is ICH because none of the little bugs seem to be on him.. he's acting completely fine and normal I can just see the little bugs on the side of the tank close to the surface!

 

My tank is cycled, I have a filter that I run everyday but I do not have a test kit! I feed my betta pellets as well as dried blood worms! I feed him 3 pellets in the morning and 3 at night and a blood worm in the afternoon every other day.

 

Have you had your water tested at the LPS and asked them for the parameters? It's hard to know if you're cycled without the numbers.

Also, when you say you run your filter everyday does that mean that you shut it off sometimes?

 

Thank you for the reply!
No, I haven't gotten my water tested at all.
Yes, I turn off the filter sometimes because it has a little bit of a current that I think stresses out my fish. The filter says it can filter up to 50 gallons within an hour and mine is only 2.5 gallons so I figure it should clean my tank in well under an hour.

 

It's not how fast it can clean the water but the fact that your BB may suffer if left without food and oxygen for any length of time and also that fluctuations in water chemistry will cause stress to your fish.