Thanks for all the replies and suggestions!
I've ruled out the oscar/flowerhorn and anything that gets over the 10inch mark. Getting a fish like that would be amazing but I cant give it a good home with this tank so I'll wait till a bigger tank is feasible.
For now however I've got a long list of options from the comments here/general research, let me know which ones sound good.
I've ruled out the Gt since has the potential to get too big and the Jd because Ive heard the vast majority are shy. The red tail might not be an option as well. Ive heard they really need the 4ft swim space & are not super interactive anyway, thoughts?
- Sajica with a school of smaller fish, larger tetra?
- Single Red tail Black shark? with a fast/small schooling fish
- Single Blood parrot
- Single Severum, do Severums get too big? My lfs has them down as a max 12inches
- Single Giraffe Hap
- Single Long Fin Acara
All of these fish are available to me through my lfs,online or breeders. If anyone knows a bonsai flowerhorn breeder in Melbourne Australia give me a buzz haha. But anyways those 6 fish look to be the best options. Let me know what you think, particularly if they need dithers what kind/how many. I'll wait for a few more suggestions and start up a poll.
In regards to filtration, I have a 1250L/hr (330gal/hr) aquaone canister. I'll most likely buy a second one and run both on this tank. Im aiming for weekly 30% water changes but realistically when uni starts up again it will probably be a 40% fortnightly change. The tank is in my bedroom across from my bed and next to my writing table. Hopefully being around the tank most of the time and some good aquascaping will help.