Keeping foods mixed up

[Wave Ace]

been trying to find the most economical way to keep foods mixed when in the fridge there is the magnetic stirrer but in the UK they are not that cheap even on ebay (£50, $80 each ) I have tried the DIY one but not to impressed with the results

so could I use just an air pump bubbling air into the food containers or as anyone tried using an battery milk frother ?

Like THIS

I would mod the end to be less damaging to the live food and wire them to a timer and power supply

 

[RyanTurner]

I was thinking of using a hydor pico pump in a beaker for mine. But, to be honest $80 isn't that much in this hobby.

 

[Wave Ace]

$80 is not a lot but I will be needing 2 or 3 and would rather spend the money on some coral so may be in the future I would get stirrers but wanted something to use short term

just had a look at the hydor pico 200 it might be an idea