I'm not one for posting often but would appreciate a little advice from the Group with regard to my Lacron water polisher. Last year it really did recover the small fines, all worked like clockwork, tickety boo.
I switched off during the winter (Skintflint that I am) and back on during March. Everything is plumbed in and works fine although it doesn't seem to be collecting/filtering as well as it has in previous years. Call me old fashioned but my logical assumption is (I think) to replace the sand that has been in there for at least seven years. Lo and behold apparently everyone uses AFM media nowadays, so I'm told.....hasn't modern day technology moved on quickly.
The supplier I have found is selling AFM in 25kg bags at £37.73 + vat, delivery. Apparaently I need TWO such bags
As I require both Grade 1 and 2 media to be replaced in the big bulbous fibreglass fish bowl. The Lacron is a mid range model and I imagine I will not need this amount of media. 
I could be wrong...... Can anyone of you budding, super-intelligent Questers with your fingers quivering on the pulse, possiby shed some light on whether AFM is the preferred media nowadays? Comment on the amount to purchase - I mean I wouldn't want the Missus to say the fish would look good if I could see them through the mountain of AFM media you bought?
Lastly; Are both Grades (if purchased) really required?
Thought gratfully appreicated.
Many thanks,
TicToc
.....