Marimo Moss Ball Filter?

[butterflybetta]

So I found this filter on eBay:
Marimo Moss Ball Filter Live Aquarium Aquatic Plants Decor Fish Shrimp Tank Pet | eBay

Does anyone know how they work?
Are they an actual filter?
If I were to get these would I still have to have another filter pumping water?

 

[Desi]

To me that looks like it wouldn't be much different than just getting a regular moss ball. You would have to get an actually filter though. Live plants and moss balls help clean the tank and keeps algae at bay, but it can't do everything a filter can do. Also a filter is what holds your beneficial bacteria.
I'm no expert though and I'm sure you already know about the BB lol.

 

[phnx314]

I think those are just any old moss balls. Moss balls and plants do help filter toxins, but they are not a filter.

 

[Shrimpgeek]

The one you are looking at is just the plastic shell. You would have to buy some moss to go in it.

 

[KingJamal2]

I think it means that it filters the waste that might potentially accumulate on the moss ball. It is sort of a protective cage for it. I don’t think it has anything to do with water filtration.

But then again, I haven’t ever owned one, so I have no idea lol

 

[Jonmott]

It’s just a plastic bio ball with moss on it, is it technically a filter? Kind of but it’s misleading.

 

[KingJamal2]

It’s just a plastic bio ball with moss on it, is it technically a filter? Kind of but it’s misleading.

Well, it’s a cover for the moss ball and the moss will eventually grow out of the little openings

A youtuber named Marks Shrimp Tanks has a video of him using one of these things. I can’t remember what video it is