Feeding discus granules to guppies and platies

[Rhyzer]

Yeah, biofilm's no big deal if you've got cleanup crew. My nerite snails go ham on that stuff. Just don't let it get outta control, or it'll look sketchy.

Nerites are the best for that. My tank's got two of 'em, and they keep everything spotless. Just make sure your guppies aren't nipping at 'em.