Can these fish work and if so, tank size?

  • We are currently upgrading MFK. thanks! -neo
I wouldnt trust the RTC one bit. But upto a cetain length of 16" the RTC and the Pbass of similar size can work together.

In the long run an RTC will need a pond to be honest.
 
Im no expert, but the rtc and peacocks might be able to co-exist as long as the rtc isnt big enough to eat the peacocks. I dont think the chocolates get big enough to stay safe from the rtc once it reaches adult size and I dont know what that last one is.

As for tank size, minimum 500 us gallons for either a single rtc or 3-4 peacock bass of the smaller breeds, to have both I personally wouldnt try it in anything less than a 1000 us gallon tank or pond.
 
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