My Oscar needs a new forever tank.

  • We are currently upgrading MFK. thanks! -neo
I've seen people do two Oscars in 5 foot tanks, total volume varying; but if it was me, 5 foot length and 18-20inch back to front would be the minimum footprint.
 
10 yrs ago I had 2 oscars in a 5ft 125 tall. I ended up transferring them to a standard 6ft 125. They did fine in both at 12" sl with one 75% weekly waterchange. Now bigger is better I agree. However they both had plenty of room and water quality was very manageable. I dont overfeed though.
 
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