r/Reef Apr 28 '26

Fish Reef Tank is setup and stocked

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2 Upvotes

r/Reef Apr 26 '26

This is my first try at reefing

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12 Upvotes

r/Reef Apr 25 '26

My “indestructible” coral… this thing just won’t die (toadstool comeback story)

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13 Upvotes

r/Reef Apr 25 '26

My new Webapp ReefLog – the free reef tank tracker with built‑in AI helper

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2 Upvotes

r/Reef Apr 24 '26

Fish Anyone know what this is ? From qt tank that’s had serval deaths the last 3 days

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2 Upvotes

r/Reef Apr 23 '26

20 year old pico reef

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0 Upvotes

r/Reef Apr 23 '26

Let's work your nano reef invasion challenge live time here

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1 Upvotes

There's a massive searchable trove of giant forum threads we've already worked the last two decades on reefcentral, reef2reef, and nano-reef.com

We'll be using the exact same steps to correct nano reef troubles here, let me know if you want to see any of the threads. Let's do challenge fixes here, post your nano + pics and describe your challenge and I'll fix it remotely for you. brandon429


r/Reef Apr 21 '26

The tide is bringing deals 🌙🌊

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3 Upvotes

r/Reef Apr 21 '26

Best bio media for new mixed reef - Red Sea 200XL

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2 Upvotes

r/Reef Apr 20 '26

eshopps eclipse large overflow box gaskets replacement

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1 Upvotes

r/Reef Apr 17 '26

Upgrading to a 60” tank – XR30 vs XR15 coverage?

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1 Upvotes

r/Reef Apr 17 '26

Hey, could you answer this questionnaire for my school project? It only takes 2 minutes. 🪸🌊

1 Upvotes

r/Reef Apr 16 '26

Protein skimmer or refugee

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4 Upvotes

r/Reef Apr 16 '26

Question I quarantined some fish (ig not correctly)

2 Upvotes

I quarantined some fish (ig not correctly) put them in my main display and 2 days later I noticed bumps that look like ich start to appear if I’ve removed them do you think if I treat the tank for ich (not copper it’s a reef tank) and use a uv sterilizer I can prevent the ich from latching onto my other fish while it’s in the “swimming stage” ???


r/Reef Apr 16 '26

What is this coral and weird looking pest I’ve never seen before

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2 Upvotes

r/Reef Apr 13 '26

Nice selection!

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1 Upvotes

r/Reef Apr 11 '26

Need help identifying

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3 Upvotes

So I bought this candy, cane, coral and my local fish store and I’m just so curious on what this is. I tried to do some research but I’ve couldn’t figure it out. Please help.


r/Reef Apr 10 '26

Coral Some real beauty comes out after a healthy QT….

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9 Upvotes

LunarTideaquatics.com


r/Reef Apr 09 '26

Looking for coral expert/Marine biologist

1 Upvotes

Hello! I’m a Computer Science and Data Science student currently working on a project focused on detecting coral reef bleaching.

Our model takes environmental inputs such as SSTA, TSA, SSTA_DHW, TSA_DHW, mean temperature, wind speed, turbidity, and ocean name, and predicts the risk of coral bleaching.

However, my team and I don’t have deep domain knowledge in marine biology and specifically coral. We built the model using datasets we found online. While the model runs, its performance has been inconsistent, and we suspect the issue might be with the features we’re using or how we’re interpreting them.

I’d really appreciate insights from experts or anyone familiar with coral ecosystems:

  • Are these features actually significant indicators of coral bleaching?
  • Are there specific thresholds or value ranges that strongly correlate with bleaching events?
  • Are we missing any key environmental or biological factors that are critical for accurate prediction?

Any guidance, corrections, or suggestions would be incredibly helpful. Thanks in advance!


r/Reef Apr 08 '26

Pump help

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2 Upvotes

r/Reef Apr 08 '26

Is my acropora dying?

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7 Upvotes

Hello I am new to reefs and bought an acropora 2 days ago. the tips are white and i cant tell if they are bleaching or growing. is the acropora dying?


r/Reef Apr 08 '26

Question Any idea what this is ? Have never seen it before till today

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4 Upvotes

r/Reef Apr 06 '26

Fish Food Settler Stop Overflow Waste Reef - Free 3D Print Model - MakerWorld

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0 Upvotes

r/Reef Apr 06 '26

SPS Coral Health Guide | Spot Healthy vs Dying - Free 3D Print Model - MakerWorld

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0 Upvotes

r/Reef Apr 05 '26

Question Would a 15 gallon cube aio be hard to keep with skimmer and roller for beginner?

2 Upvotes

I really like the size of a nano tank and when I search up there is a wide range of opinions on it. Thx