White stuff growing on candy cane frag plug???

[gabeJLFT]

just bought this candy cane coral today and i’m about to put it in the tank when i see white stuff growing on the bottom of the plug. it kind of feels like rubber and is only on the bottom of the plug. is this bad for the coral???[

IMG]https://uploads.tapatalk-cdn.com/20180428/1187e83575006551ed5ffc8854e836c6.jpg[/IMG]

 

[DQM5]

just bought this candy cane coral today and i’m about to put it in the tank when i see white stuff growing on the bottom of the plug. it kind of feels like rubber and is only on the bottom of the plug. is this bad for the coral???[

IMG]https://uploads.tapatalk-cdn.com/20180428/1187e83575006551ed5ffc8854e836c6.jpg[/IMG]

harmless sponges :) good for filtering your water

 

[gabeJLFT]

harmless sponges :) good for filtering your water

ok thanks so much!