Spots on Frogspawn

[lennyd4]

Can anyone identify if these are hitchhikers on my frogspaw ? They look like black spots. This was dipped when I purchased it with CoralRx. It opened up beautifully for weeks now for the past 2 weeks it has not opened fully. Just a few days ago I dipped it a second time and these spots are still there and do not come off easily.

 

[Robert McCreary]

is it on the bone or flesh? could they be tube snails? if its tube snails youll see a calcium pipe that is protruding from a base that is in a shape of a ball . they are red/purple in color and only irritate the euphylias delicate flesh when the tubes grow too large

 

[Robert McCreary]

p.s. the black splotch between the two highlighted circles looks like bruised flesh, or somesort of necrosis. i really have no idea about that one.