Dino or diatom?

[InsanityPrawnBoy]

So as some know I have some problem with my tank. It was brought to my attention it might be dino. I got some pictures of the rock and everything. If it is just a diatom then I don't have a clue to what killed my snails and coral. any help would be great. Thanks.

Also there are stringy things on my return. What is that?

 

[Smitty]

Yeah, that looks more like dinos than diatoms, especially if it's stringy with little snotty looking bubbles in it.

 

[BL1]

+1 smitty, that second picture looks a lot like dinos