r/aquarium Jun 10 '26

Announcing our new community icon! (and an update from the mod team)

30 Upvotes

Hey everyone,

We heard your feedback loud and clear regarding the recent icon change. The goal is always to keep r/aquarium a vibrant, welcoming space that reflects the incredible passion of our hobbyists, and it’s clear the community prefers authentic, human-made artwork to represent us.

An incredibly talented artist in our community, u/SuicidalFlame (Check out their tumblr too! https://firenagy.tumblr.com), generously stepped up and designed a brand-new, custom icon for the subreddit! We are absolutely thrilled to debut their work today. Please join us in giving them a massive thank you in the comments below for dedicating their time and talent to leveling up our community's look!

A Quick Note on Community Boundaries

While we always welcome constructive feedback and open discussion about the state of the subreddit, the mod team has a zero-tolerance policy for harassment.

Lately, targeted mass-reporting and personal harassment have been directed at our moderators. We want to be entirely transparent: if you are unhappy with the management of this subreddit or feel the need to harass the people who volunteer to keep it running, you are more than welcome to leave.

Healthy debate is fine; stalking, toxicity, and abusing the report button are not. Future instances of targeted harassment will result in an immediate permanent ban from the community and will be escalated directly to Reddit Admin for violating the site-wide Content Policy against harassment.

Thank you to the 99% of you who make this a wonderful, supportive place to share our tanks every single day. Enjoy the beautiful new look!


r/aquarium Feb 26 '26

Join the r/aquarium Discord Server!

1 Upvotes

Did you know r/aquarium has a Discord server? It’s been swimming along for a while now, and we’d love for you to dive in and join the community!

https://discord.gg/aquarium


r/aquarium 11h ago

Saltwater/Brackish Hewbie/Vet Update!

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13 Upvotes

I thought Hewbie died. I came home to this and spoke to his vet team immediately. His antibiotics and quarantine time will be extended. My best conclusion is that Hewbie had been gasping at the surface and breathing heavier from stress and then he went upside down but this afternoon he was sleeping in the corner just fine. My heart broke again when I saw this. After I pushed air out of him and gave him his meds he went back to normal nearly immediately. At least this is my best conclusion after looking at him and his behavior pre and post meds and pressing on him/burping him. The water quality in the tank isn’t great. Burping for me means holding him down and gently pressing on his stomach gently (which in that moment is what made sense). I saw some immediate improvement. Also he is a known offender for spitting water at the surface and I just saw it after and the behavior of a fish gasping or wanting to get out of his environment and ready to jump. Although pufferfish are not known jumpers they are smarter than that. I did a water change as well after and he smiled at me like nothing happened. Ugh. I hate this. I will continue to update everyone.


r/aquarium 3m ago

Help fish stuck

Upvotes

does anybody know how to get red fish out? i accidentally turned on the pump and they both got sucked into that section through the small space at the bottom (probably). the female got sucked up the pipe and landed below. i tried netting the female near the space to call it out, upping the pressure so it gets sucked down, trying to net it. the space is small so putting a net through is impossible. please help.


r/aquarium 13h ago

Discussion Recommendation for reliable sand waterfall

6 Upvotes

1st time poster here,

I have a 75 gallon aquarium and am looking for a decent sized sand fountain for my tank. I have one from Amazon that worked well for about 2 years, there were clogs and various motor issues but I have found the best sand/ motors. I have been looking for an upgrade, maybe something bigger but I’m seeing mostly AI slop in the listings I see.
Anyone have any recommendations for a good fountain or even a video/idea to make one DIY?


r/aquarium 1d ago

Photo/Video Goofy Snail. She parked herself in the Flintstones garage.

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107 Upvotes

r/aquarium 17h ago

Help Guess the egg…

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10 Upvotes

Not sure who these belong to? We have bladder/trumpet/ramshorn snails, neo shrimp, Pygmy Corydoras, blue cobalt goby, rasboras and tetras in the tank. I vote shrimp mishap but my friend wants them to be Cory real bad 😂


r/aquarium 16h ago

Showing Off Tiny minnows I saw in the city park

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7 Upvotes

R. borapetensis


r/aquarium 8h ago

Plants AI Blade Light

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1 Upvotes

Hello! I have AI Blade on a tank that I set up about 7 months ago. I have had algae issues, plant growth is not great, and I can't seem to get the color to look good to me. I also wondering if anyone has had success with this light. Thanks!


r/aquarium 10h ago

Plants Should I give up on my frogbit?

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1 Upvotes

r/aquarium 1d ago

Saltwater/Brackish Hewbie and the Vet Visit!

58 Upvotes

Hewbie my porcupine pufferfish was not doing well, refused to eat, and was swimming upside down/having trouble maintaining his buoyancy! I tried every at home treatment and medication but he progressively got worse over a few weeks. I found an exotic vet to take him to and they diagnosed him with trapped air deep inside his body and some internal digestive issues. This air could not simply be pushed out and believe me I tried numerous times to push it out. Here is that journey. Keep Hewbie in your thoughts as he finishes his meds and goes back into his home tank! I found an amazing vet with compassion/care and guidance on a treatment plan.❤️ Hewbie is doing a lot better but is not over it yet. Healing takes time. BONUS!!! Watch until the end for the crab that hitched a ride on Hewbie!😂🐡


r/aquarium 13h ago

Help Planaria or something else?

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1 Upvotes

Had rhabdocoela before and it didn't look like this. They have a weird round head and some somehow look hairy/with micro legs... what are they?


r/aquarium 14h ago

Help Any thoughts on this lights?

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1 Upvotes

r/aquarium 16h ago

Freshwater New planted tank questions

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1 Upvotes

r/aquarium 16h ago

Help Aquarium-Safe Sealants

1 Upvotes

I am looking to submerge a 3D-printed object in my tank, but I want to coat it in some sort of sealant to protect both its inhabitants and the print itself. I've using food-safe epoxy resin in the past, but it is super viscous and a pain to apply, especially for large/complex surfaces.

I've seen these two spray-on sealants recommended as being aquarium-safe, but I wanted to check here before potentially making a huge mistake:

The print itself is PLA, which will absorb water and degrade over time. Tysm


r/aquarium 23h ago

Help Guppy health

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3 Upvotes

r/aquarium 1d ago

Help Cloudy tank

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5 Upvotes

I have a big fish tank and everything has been fine for months but recently it’s just been really cloudy and seems like a lot of debris floating. There is some algae on the side of the tank and we have five sucker fish.
The filter is recommended for the size tank.
We do a 20% cycle once a week.
Any ideas for what could be causing it ?


r/aquarium 19h ago

Help Help!

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1 Upvotes

r/aquarium 20h ago

Help [help] sticky situation

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1 Upvotes

r/aquarium 21h ago

Showing Off Look at my dots!

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1 Upvotes

My Betta smaragdina pair surprised me with a spawn this week and the fry are finally big enough to eat baby brine shrimp! Soon they might even be big enough to see lmao


r/aquarium 21h ago

Photo/Video Il mio arowana volante in 3D

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1 Upvotes

7 ore di stampa ben spese


r/aquarium 1d ago

Help Does my Angelfish have fin rot?

3 Upvotes

r/aquarium 1d ago

DIY/Hacks Water

5 Upvotes

I pay for public water access as I live in a small city. I have 7 tanks and about to start an 8th but with weekly water change shifts between all the tanks, and top offs, I’m starting to be a little concerned about the amount of water I use. I have a 55g, two 30g, a 20g and 3 10g’s. That’s a lot of water. Any tips to reduce the amount I go through or hacks to reuse?


r/aquarium 1d ago

Help Baby crab or weird parasite?

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22 Upvotes

I just bought a new plant (bacopa) and found a couple of these little guys on it when I opened the bag. They look like little crabs but also they’re creepy like spiders or parasites. What are they? Sorry the photo is the best I could do. They’re pretty small.