What filter is this?

[Oxboy]

With the clear intake and outflow? Guessing the heater is housed in the filter canister. thanks.

[danotaylor]

They're glass attachments that are used to produce a less inhibiting view because of "unsightly" equipment. Mostly used in the aquascaping world and planted tanks. Not sure if they come in plastic, but I would be concerned that darting discus might break them, damage themselves, and put shattered glass in the tank...

[RogueDiscus]

Isn't that the heater on the right side? Something like an Ebo-Jager.

[danotaylor]

No Steve, that's a glass intake piece...

[RogueDiscus]

No Steve, that's a glass intake piece...

Oops! OK, sorry.

[danotaylor]

No worries mate ;)