I bought 7 recently but only two survived. It's like what CC and Dom says, the traveling is a killer.
However, those that survive are guaranteed to be the strongest!
I use cattapa leaves to bring down the ph in my semi-BB tank for the bigger alts.[950liters]
I think our friend PiscesLim got some tips to breed altums from Horst Linke if I'm not mistaken.
Varied diet. Tall tank- minimum 2ft. low pH, low gH and lots of space.
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