Purple bubbles, and hairy looking stuff??

[clubber122]

hi guys ive recently noticed some purple bubbles form on one of my pieces of LR, also on a diffrent piece theres a kind of purple skins forming? any idea what it is? good or bad?
1st two pics are the bubbles, last one if the hairy stuff

Sean

[jenglish]

first 2 look like a type of bubble algae and the third looks like cyano to me

[Hop]

Cyano (bad), macro (good, but maybe not in the display) and bubble algae (bad).

[clubber122]

what do you suggest i do?, also what causes this stuff?

[clubber122]

any one???