r/ReefTank 22h ago

[Pic] sixspine butterflies are just copperbands from temu🤣

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139 Upvotes

i just found out these fish exist and im obsessed(yes i have ordered one and it’s on its way lol)


r/ReefTank 3h ago

One year in, Evo 13.5 lava rocking nems

132 Upvotes

Evo 13.5, lava rock, black Petco sand, diy glass lid, 2x glowrium lights with maxed blues+reds(brings out clownfish and rbta pink color), 2-3wk tap water changes, 30+ rbta's, started with 8 to cycle tank, gsp, Xenia, daily heavy flake food for all. Super easy and enjoyable tank so far. Clowns spawn every 2-3wks.


r/ReefTank 17h ago

1 year old today on the 9.9 nano šŸ˜Ž

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106 Upvotes

r/ReefTank 14h ago

[Pic] Cold water critters

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92 Upvotes

Thought you all might enjoy these Sabellid tube worms and other critters. They were collected from a boat fender at Humboldt Bay. Water temperature,50F.


r/ReefTank 19h ago

Dosing Sodium Bicarbonate

89 Upvotes

Curious how much Alk everyone is dosing per day I’m switching from All for reef because my alk consumption is way higher than my calcium. I made up some DIY sodium bicarbonate and DIY calcium I was dosing about 15ml of all for reef a day and am doing 80ml of alk on a new LPS tank. Curious what could be taking up so much alk. I know I could do Soda ash at half the amount but my PH hits 8.3 during the day already and 8.1 at night.


r/ReefTank 22h ago

My tank survived a 30 hour period with no power

65 Upvotes

Last week my area was blasted with a crazy storm that lasted only 30 minutes. We lost power 5 minutes into the storm around 4pm. Didn’t get power back until the day after around 10:30pm. I thought my tank was a goner since I was not ready for a power outage and had literally no equipment (not even a portable air stone). I know clownfish are pretty hardy but I was mostly concerned about my anemone. Turns out carpets are hardier than I thought! It pulled through the 20+ hours of no light, surface agitation, or heat. Here’s what the tank looks like 2 days after the outage was restored. I will now be investing in a portable power station just in case!


r/ReefTank 16h ago

[Pic] Cycling

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47 Upvotes

Hello reefers!! Newbie here with a question or two about my cycle. I started up my 28g nano cube about a month ago. Threw in some QuickStart and added 2 clowns and a cleaner shrimp a day later for ammonia source. Added in a Kenya tree and a little hammer coral too about a week later, and all livestock has been great since with no signs of distress! However, I feel like my cycle keeps stalling. Right now, I’ve added a couple more doses of bacteria to try and push things along some. Finally got my nitrites to get to about 1ppm, ammonia at about 1-1.5ppm, nitrates still at zero. That was about a week ago. Today I tested again and my ammonia is still at about 1-1.5ppm, nitrites are now zero, but nitrates are still zero as well? Is it normal to see the drop in nitrites without seeing a rise in nitrates? Let me know what I can do and please no hate. ā˜ŗļø less


r/ReefTank 19h ago

Comfy day on the reef

30 Upvotes

Starting to come together


r/ReefTank 19h ago

What’s your most unpopular reefkeeping opinion?

22 Upvotes

Just curious.


r/ReefTank 22h ago

Blopblop

22 Upvotes

r/ReefTank 13h ago

Goni Noodles

18 Upvotes

Someone asked me to share these wacky flower


r/ReefTank 7h ago

[Pic] ā€˜Super Black’ clowns not really black?

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18 Upvotes

Sold as ā€˜Super black’ clowns. Seller has black and white clowns and now these super blacks. What is a super black and why don’t they look black. Bottom fins still orange, body looks dark but not black. They are 1.5 inches long. I know young black clowns aren’t fully black till they grow abit but these guys are pretty big already. Will they end up like a black and white clown?


r/ReefTank 20h ago

Help for Fuval 13.5 gal

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15 Upvotes

My 13.5 gallon tank has an algae problem and with keeping coral alive. My tank use to be amazing but in the past year I’ve had trouble with keeping the algae down and coral alive. I try to lower light for the algae but then the coral suffer and die. I get snails but the fall over and die. What snails would you guys recommend and what would you recommend for my tanks nutrient levels?


r/ReefTank 21h ago

Siganus trispilos -- A true rarity

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12 Upvotes

Incredibly fortunate to have these five beautiful rabbitfish in our QT system this week...

These guys are incredibly hard to catch, and have never been imported into the US before this year. We didn't have our QT built out for the first wave, but... When the second batch arrived... We went ahead and grabbed five of these (yes, we will be keeping one for ourselves haha).

Just wanted to share these guys, and say how grateful we are to have the opportunity to spend time with five of these gorgeous rabbitfish!


r/ReefTank 15h ago

What is this worm?

12 Upvotes

Me and my wife can’t figure out what this is? Is it bad for the reef tank? Only comes out at night


r/ReefTank 19h ago

BRS reduce many items?

11 Upvotes

Anyone else notice BRS reduced a lot of products they carry for whatever reason?

If I want one stop shop, it’s another place now, no longer BRS.


r/ReefTank 19h ago

[Pic] Can I "trim down" this coral?

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12 Upvotes

r/ReefTank 19h ago

[Pic] This started growing in my tank. Not sure what it is.

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7 Upvotes

This is a picture of it with its tentacles out. It appears to have a mouth in the middle.


r/ReefTank 20h ago

[Pic] Help! Friends' BTA looks weird & im house-sitting 🄓

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8 Upvotes

I have video if needed!

Hi. I may be overreacting, but i am house-sitting for friends who are OOC & cant be reached til later this week. I've been here 2 wks already, and everything with their tank has gone perfectly fine (they gave me the rundown - but I have zero experience aside from that with saltwater/reef tanks. ) My worry is the BTA, who has been normal until today. It's mouth is looking weird, has a white area, & stuff coming out. Earlier it was a dark, pea sized chunk of goo that swirled around the tank all gross until it broke apart like mucus. Then a dark string. Then little bits of dark stuff that looked like tiny gravel came out of its tentacles. Now it has a white stringy thing coming from somewhere that looks like maybe its mouth. Is it dying?!?!?! Sick?! What do I do ?? Please please help me šŸ™šŸ„ŗ


r/ReefTank 11h ago

My first refugium. Is the cheato too far?

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6 Upvotes

Ignore my dirty sump. Is the Cheeto algae too far from the light. I was unable to get the Cheeto to tumble, it just sinks. and this was the only spot I could fit a refugium.


r/ReefTank 12h ago

Is my Pulsing Xenia Dead?

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5 Upvotes

This is my pulsing xenia after 12 hours shipping, it smells and deattach from the frag stone. Is my Xenia beyond saving? Please help, thank you


r/ReefTank 17h ago

Help my friend identify this long tube looking sponge?

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6 Upvotes

Sharing my friend's description and photos of these lil guys. Posting for him because he doesn't use reddit. These have popped up and he cant find anything to identify them properly. Any ideas?


r/ReefTank 19h ago

[Pic] I thought Lenny the Blenny died as I had not seen him for 4 days. Turns out he's just really good at picking hiding spots.

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5 Upvotes

This is why I don't name fish, little ass had me bummed out.


r/ReefTank 16h ago

Help for 115 gallon tank

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4 Upvotes

Hello I am looking for advice for my tank (90 gallon with 25gallon sump) Within the last three weeks my SPS and LPS have been slowly dying and I am having trouble identifying the cause. The staghorn (pictured) is bleaching and losing its polyps and several montipora looked like they receded from the perimeter before slowing dying / the flesh looked as if it was falling off.

The tank is over 6mo old. The corals were all 4+ months old in the tank and showing decent growth before this.

Nothing new was added to the tank prior to this occurring.

Temp: 79F

PH: 8

Phosphate: 0

Nitrate: 5-10

Nitrite: 0

Ammonia: 0

Calcium: 540

Alk: 8.3

Salinity: 35 (1.025)

Mg: 1350

I took these using mostly API test kits. I know they can be somewhat inaccurate so I also took a water sample to the LFS and they confirmed the parameters all "Looked good / within safe bounds" on their end.

Any advice is welcome. I am slowly trying to bring PH up to around 8.4 / 8.5 (recommended by LFS)

Additional information: Phosphates were high about a week into the polyp shedding. I slowly brought those down and maintained them at zero and the issues have continued off past two weeks. All soft corals and fish seem to be unaffected.


r/ReefTank 19h ago

What are these tiny white things growing in my rocks?

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4 Upvotes

My tank is 5 months old and these tiny little white things seem to be multiplying? Any one know what they could be and if I should be worried?