best flow for Duncan corals

[finley12]

What's the best flow rate for Duncan corals? I've got mine in a 40-gallon tank with a Nero 5 pump, but they don't seem to fully extend. Params are stable, 78F, 1.025 salinity, 8 dKH. Lighting is AI Prime 16HD at 60%.

[Rivet9]

Duncans prefer moderate, indirect flow. Too much direct current can stress them out. I'd dial the Nero 5 down to 30-40% and aim the flow at the rockwork, not directly at them. They'll open up more if they feel secure.

[FinMaster]

Yep, Rivet9 nailed it. Mine thrive in low to medium flow, kinda like a gentle sway. If they're not opening, try moving them to a spot with less direct current. Also, check for pests, they can be sneaky.

[talonbro]

Or just blast 'em and see what happens. Survival of the fittest, right? Jokes aside, Rivet9's advice is solid. Duncans are chill but fussy about flow.

[kicks]

Duncans prefer moderate, indirect flow. Too much direct current can stress them out. I'd dial the Nero 5 down to 30-40% and aim the flow at the rockwork, not directly at them. They'll open up more if they feel secure.

This worked for me too. I switched to a gentler setting on my MP10 and my Duncans perked up in a couple days.

[Torvix8]

I keep mine in a 20-gallon with a Hygger wave maker on the lowest setting. They're fully extended most of the day. Maybe try reducing the flow incrementally to find their sweet spot.

[finley12]

Thanks for the tips, everyone. I'll adjust the flow and see how they respond. Appreciate the help!

[Rivet9]

Let us know how it goes. Sometimes it takes a few days for them to adjust. Also, make sure your nitrates aren't too low, they like a bit of nutrients in the water.

[FinMaster]

Let us know how it goes. Sometimes it takes a few days for them to adjust. Also, make sure your nitrates aren't too low, they like a bit of nutrients in the water.

Good point. Mine do better when nitrates are around 5-10 ppm. Too clean and they get cranky.

[talonbro]

Cranky corals are the worst. Like, dude, I'm trying to keep you alive here. Lighten up.