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Would anybody be willing to advise me of how to set up a thriving Discus habitat. I have my ideas based on an Oceanic 42 gal stretch hex. I plan to use driftwood,rock,live plants,and low level lighting. For filtration would it be better to use canister(Eheim) or BioWheel (Emperor/Penguin)? I also plan on maybe having some small Tetra (or maybe Blue Rams?) in the mix. Any other suggestions/ideas/critiques would be very welcome. I am trying to save for this project, so a lot of time will be invested in the planning and conception of this dream! Thank you in advance for any feedback.

42 gal stretch hex. good tank
I plan to use driftwood,rock,live plants,and low level lighting.
plants for low light include Anubias, crypts, dwarf lilys
For filtration would it be better to use canister(Eheim) or BioWheel (Emperor/Penguin)? filter doesn't matter.
I also plan on maybe having some small Tetra (or maybe Blue Rams?) in the mix... Anything that likes it warm.

Thank you Uncle!