Bro IMO you should get an alternative. My last redtail grew over an inch a week, seemed like a minute. It will be able to swallow those fish in a couple months. Check out some catfish in the 18" to 24" range. Still get good size, smaller mouths, etc. I traded mine in because in just 3 or 4 months it looked like it was going tp inhale my 7in ornatum at the time.
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