"Kay" wrote in message
...

Don't you get algae problems?

--
Kay
"Do not insult the crocodile until you have crossed the river"


No more than in outside butts which I also use.(for outside plants).
This problem is significantly reduced by using dark coloured butts.
My main outside "butt" (5000k gallons) also has a black polythene cover to
eliminate algae totally.

Pete