Well I finally came across a killer deal. 45(long) gallon aquarium for $50. Came w the top and lights. My FH should have himself a nice peaceful time and so will my poor oscar. I added the decor and filter. So all in all, got out for around $130ish
Congrats on the new tank, but it will only be peaceful likely for a couple months. This tank is much too small for a flowerhorn on it's own, and a FH with an Oscar (a bad combination anyway) would need a very large (6ft. or bigger) tank. Have you planned to upgrade again very soon?
Now the bad news... I just hope that you are not planning for this to be a long-term home to your oscar and flowerhorn. A 45 long is not really big enough for these fish IMO. They would most likely get along much better and possibly be healthier in a larger tank. This looks like a great start for them for now though if they are still juveniles. Good luck.
IMO I would agree with gage. I think that a FH and a oscar could work together. This pairing would mostly depend on the aggression level of the FH, the sex of the two fish, and the size of the tank. With this tank you alread have one big strike against you because it is way too small for this. I would say that a tank would have to be a bare minimum of like 75 gallons for this to work. You would be even better off if it was like a 125 gallon tank.