Hello weird question but can algae actively predate on fish? I found my goby dead in his favorite place to sleep, wrapped up in a weird algae. The algae is basically clear but attaches itself to the sand so if I were to grab the sand a big clump of sand would come with it. I have no clue what it is or why my goby had half of its body wrapped up in the algae-sand mix. I would provide pictures but you can't really see it anyways. Any help would be greatly appreciated.