What is this monster?

[MuddyWaters]

 

[MattW]

Looks similar to my Pogostemon quadrifolius 'Octopus' that I have probably something else though.

 

[emeraldking]

Which one of those fish do you mean?

 

[anewbie]

If you mean the tall plant as a single stalk that looks like pso.

 

[Munroco]

Pogostomen stellatus I think. I have it in most of my tanks. Very versatile plant.

 

[anewbie]

As a bonus when grown without a top it will breach the surface and produce a nice purple flower - though in truth it is best grown as a bush and seems to do much better emersed long term.

 

[gwand]

@MuddyWaters if you don’t recognize the plant how did it get in your tank?