Please understand this.................
They work alright in a community of other large non to medium aggressive cichlids!!!
For this you will need a large tank....IMO at least a 125 gallon!!
IMO/experience it takes 40-50 gallons of water per adult oscar and massive amounts of filtration to keep oscars healthy and happy.
Keep in mind....oscars are very prone to HITH disease and there fore excellant water quality is a must!!
water changes on the average of 30-50% weekly are the norm, but 50% bi-weekly are even better.
I am currently growing out 7 gold oscars in hopes of attaining a breeding pair. These 7 fish along with 9 firemouths are growing out in a 120 gallon tank right now.
The firemouths average 3-3.5" each and the oscars were 3-3.5" when first placed in the tank, but are now over 4.5" and growing like weeds.
By next month the 7 oscars will be place in a 180 gallon tank to finish growing and hopefully pair off.
Once I have a pair, the other 5 will be put up for sale!!
CM