I have all my Phals, a bakers dozen, in S/H. Slotted for the bloomers and most with wicks.
They all seem to be healthy. For the non or not yet bloomers, I have put them in a wonderful find from Dollar Tree--Pint and Quart Betty Crocker measuring cups.
They are very study, easy with soldering iron to make the holes an inch up from bottom, And I love the handles for picking them up to inspect roots and water levels.
I came across them by accident in one dollar tree and checked my local store and they have them also. for a buck each and with 8 non bloomers, what a buy.