Critter ID please

Jul 10, 2026

curiousreefkeeper

Community Member

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Any ideas what these microscopic guys are
Doing my water change and turned the pump and wave makers off and these guys are coming up to the surface in the hundreds

Jul 10, 2026

kevgib67

10K Club member

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I’m unable to see anything from the pictures but my guess would be copepods. Are they scurrying around on the glass, if so I’ll stick with copepods.

WHICH TYPE OF MISTAKE TAUGHT YOU YOUR MOST EXPENSIVE REEFKEEPING LESSON?

Moving too quickly or adding too much at once
Votes: 2 50.0%
Skipping—or shortening—quarantine or dipping
Votes: 2 50.0%
Buying the wrong equipment the first time
Votes: 0 0.0%
Ignoring maintenance, warning signs, or redundancy
Votes: 1 25.0%
Chasing numbers or making too many changes
Votes: 1 25.0%
Choosing incompatible fish, corals, or invertebrates
Votes: 1 25.0%
Poor aquascaping or tank-design decisions
Votes: 0 0.0%
Failing to research an animal’s needs
Votes: 1 25.0%
Trusting bad advice
Votes: 1 25.0%
Doing something on the tank when you should've gone to bed
Votes: 0 0.0%
Something else—tell us below
Votes: 0 0.0%
I’m still waiting for my first expensive lesson!
Votes: 0 0.0%

Critter ID please

curiousreefkeeper

Community Member

kevgib67

10K Club member

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WHICH TYPE OF MISTAKE TAUGHT YOU YOUR MOST EXPENSIVE REEFKEEPING LESSON?

Moving too quickly or adding too much at once

Skipping—or shortening—quarantine or dipping

Buying the wrong equipment the first time

Ignoring maintenance, warning signs, or redundancy

Chasing numbers or making too many changes

Choosing incompatible fish, corals, or invertebrates

Poor aquascaping or tank-design decisions

Failing to research an animal’s needs

Trusting bad advice

Doing something on the tank when you should've gone to bed

Something else—tell us below

I’m still waiting for my first expensive lesson!

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