Evoloution Aqua Pure Aquarium Balls

[mitch70]

I have read lots of good reviews regarding these - releasing good bacteria and keeping water crystal clear.
Has anyone used these? were they any good?

They seem decent value approx £7 for 50 balls - 8-10 per week during water changes should treat a 240litre tank.

 

[MBOU]

They are excellant, if you go back a few pages there was another discussion on these and so far they seem to have thumbs up from everyone who is using them

 

[mitch70]

these have now been in my tank for couple days and already my water is crystal clear, anyone not tried these i would recommend you do, fantastic value.