Somewhere between 6-8". Alot of factors govern how fast they grow and what their max size will be . Frequency of waterchanges , diet , frequency of feedings , the size tank they're in , crowding of the tank , ect. Acaras can be slow growers , but yours should be larger than 4" . can you give us some specifics on the above factors? Might help narrow down the cause .
Somewhere between 6-8". Alot of factors govern how fast they grow and what their max size will be . Frequency of waterchanges , diet , frequency of feedings , the size tank they're in , crowding of the tank , ect. Acaras can be slow growers , but yours should be larger than 4" . can you give us some specifics on the above factors? Might help narrow down the cause .