I try to pick a size that is a slight bit bigger than the anemone's foot. Small ones end up in 1/2" or 3/4" end caps. The biggest ones get 1" to 1 1/2" end caps. It's been my experience (20+ years) that RFA and maxi-mini anemones stay in the end caps 99% of the time. I do have a family (original and several splits) of Black Widow Bubble Tip anemones and the stay home in the end cap rate is more like 50/50.First time I've seen this advice. Any particular size PVC? Sorry, I know it's been awhile
