Substrate cleaner

[Jadzir]

Looking for something to do substrate clean between water changes.
Many years ago I remember my father had one with a bag attached on the side of it. The water went through the bag and the ‘gunk’ was deposited in the bag.
Have had a look on Amazon and there seems to be loads of them.
Looking for recommendations please.
Needs to work with sand.
Be reliable.
Able to get into tighter spaces.
All the above more important than cost.
In the U.K
Ta

 

[Slaphppy7]

Looking for something to do substrate clean between water changes.
Many years ago I remember my father had one with a bag attached on the side of it. The water went through the bag and the ‘gunk’ was deposited in the bag.
Have had a look on Amazon and there seems to be loads of them.
Looking for recommendations please.
Needs to work with sand.
Be reliable.
Able to get into tighter spaces.
All the above more important than cost.
In the U.K
Ta

Python water changer...you don't push the siphon into sand substrate, like you would with gravel, but rather swirl the siphon above the substrate

 

[Jadzir]

Python water changer...you don't push the siphon into sand substrate, like you would with gravel, but rather swirl the siphon above the substrate

Have what I need for water changes.
Looking for something that cleans rather than removes water.
Thanks for the reply.