r/ReefTank 6d ago

No judgment questions zone - March 31, 2025

2 Upvotes

Here is the place to post questions about pest ID, coral/fish ID, your cycle, or any other questions that generally wouldn't start up a conversation. If you have an interesting or unique question please create a new thread so everyone can discuss it in length!

Pest ID guide

BRS pest guide

BRS beginner resources

BRS 52 weeks of reefing YouTube series


r/ReefTank 6h ago

Tube Anemones Feeding

Enable HLS to view with audio, or disable this notification

30 Upvotes

r/ReefTank 23h ago

Tommy likes to sleep in this corner so I got him a couch.

Enable HLS to view with audio, or disable this notification

667 Upvotes

r/ReefTank 34m ago

Location matters!

Thumbnail
gallery
Upvotes

I noticed this little guy was struggling in his old spot. He was on a rock closer to the bottom of the tank so I moved him higher up and towards the center. The first pic was later the same day I moved him (already an improvement from before). The second pic is 3 days later. It's always interesting how something as simple as the wrong spot can matter so much. Just excited he recoverd and figured I'd share lol.


r/ReefTank 17h ago

Video of my mixed Reef Tank. My first Reef Tank. Best Hobby ... more like a lifestyle. IMO ..

Enable HLS to view with audio, or disable this notification

182 Upvotes

r/ReefTank 13h ago

Nano Reef 1 Year Milestone

Enable HLS to view with audio, or disable this notification

60 Upvotes

Aiptasia loves me


r/ReefTank 2h ago

Lesson learned. Bought a tux urchin and this guy uprooted all my corals frags I had placed in my sand bed and some in my rock. 🤦‍♂️ to the sump it goes.

6 Upvotes

Plenty of algae in there for now. And I only paid 20 bucks for it. About to start a 40g, will move it there in a few months.


r/ReefTank 17h ago

[Pic] New light, who dis?

Post image
92 Upvotes

Nothing but good things to say about the ATI Pro Stratons... Worth it / 10


r/ReefTank 52m ago

Sunday Photo Dump

Thumbnail
gallery
Upvotes

r/ReefTank 41m ago

[Pic] Just added this guy and everyone is getting along!

Post image
Upvotes

Observed multiple of these six lines at my lfs and made sure i got the most peaceful one. So far so good


r/ReefTank 1h ago

[Pic] Dwarf Sea Hare

Post image
Upvotes

Added this little guy to do some clean up, hopefully it can get the hair and macro algae in check


r/ReefTank 6h ago

[Pic] Velvet somehow infected my tank again. So i do a proper quarantine tank with copper this time @@

Post image
8 Upvotes

r/ReefTank 16h ago

Added my 1st torch coral to the tank.

Enable HLS to view with audio, or disable this notification

28 Upvotes

r/ReefTank 12h ago

[Pic] After 8 years in the hobby, time to start from scratch

Post image
10 Upvotes

r/ReefTank 21h ago

Have been messing with salt water for a while now and slowly combined my tanks into this and I think I’m in Love.

Enable HLS to view with audio, or disable this notification

39 Upvotes

Any tips on flow would be appreciated I have 2 filters and 2 power heads I do have a third if needed but I think this isn’t too bad!


r/ReefTank 5h ago

Zoa polyp extension

Thumbnail
gallery
2 Upvotes

What causes my zoas to be extending out so much?


r/ReefTank 1h ago

Light settings for an lps dominant reef tank

Upvotes

I have a Cetus 2 and so far i used the preset of the cetus app. I'd like to set the light so that my lps can also look prettier. Can you help me i have a 32 gallons cube. The light has 6 channel of different colours: warm and cold white, blue, deep blue, cyano, violet, red. Ty.


r/ReefTank 14h ago

Filling up time!

Thumbnail
gallery
8 Upvotes

r/ReefTank 1d ago

January to April Growth

Thumbnail
gallery
47 Upvotes

These are the first sps corals back in the tank after a crash that killed off all my sps. I was gifted these from some folks in my areas reef club to test if the tank is ready for some more sps. Growth started very slow but has picked up a ton in the past month, things are looking good!


r/ReefTank 23h ago

I made a lid for my RO storage tank that has both high and low water sensors to control filling along with a mechanical float valve and high water sensor.

Thumbnail
gallery
32 Upvotes

r/ReefTank 1d ago

Activist are coming for the hobby..

36 Upvotes

r/ReefTank 5h ago

Montipora crazy T starting to encrust onto the rock work.

Thumbnail
reefbay.com
1 Upvotes

Who else has crazy T? What's yours look like?


r/ReefTank 17h ago

[Pic] Ocellaris or percula clownfish?

Post image
10 Upvotes

Bought her as an ocellaris over a year ago. Starting to have doubts now. This is the best photo I could get. Looks like she only has 10 spine things, a smaller dorsal fin and more orange around the eyes? So she's a percula right?


r/ReefTank 1d ago

[Pic] On a scale from 1-10 how ghetto is my diy sump? Gonna be putting chaeto in it soon

Post image
34 Upvotes

r/ReefTank 15h ago

60g pics as lights dim for the night

Thumbnail
gallery
8 Upvotes

The sailfin cleared the macro in a month. (See post from a month ago) But hes growing fast he will be with the big boys a lot sooner than i thought he would.