gavinthefish
In Memoriam
How long does it take for duncans to grow? I'm thinking of buying a single head for a really good price and would love to know how long it will take to grow.
That sounds just like my experience with healthy duncans. Feed the heads meaty foods early on and they'll grow faster. Once you have a few heads, just let them catch what they can and they'll still grow to a baseball or softball pretty fast. The time between 1-4 is a lot longer than 4 to a lot, it seems. Medium light and flow will keep them happiest, IMO. Mine sits in the middle of my 120g, lit by 2 Kessil A350s with 3x MP40s handling the flow.mine started with 3 heads and exploded to about 40. now it's very slow to pop new heads. when fully extended its about the size of a softball