/r/aquarium

Photograph via snooOG

The number 1° subreddit for all you aquarium fanatics out there!

Don't forget to read the rules before posting!

Beginner threads


Read the rules before posting:

https://old.reddit.com/r/aquarium/about/rules/

1. No trolling, degradation or offensive allowed.

All comments must comply with basic Reddiquette Any negative comments must be tactful and constructive.

It's ok to disagree, but choose your words wisely.

Trolling can result in a permanent ban.

2. No spam or advertising: This is not a selling sub.

If over 10% of your submissions and conversation are your own site/content/affiliate links, you're almost certainly a spammer. [1] [2] [3]

3. Tag any dead creatures as NSFW.

Tag any dead creature as nsfw, even skeletons. It may not seem like a big deal to some, but for others it can be disturbing.

4. No animal cruelty.

Don't post stuff like creatures that are stuck or in a horrible situation.

5. No low effort posts (spam).

This includes memes, comics, demotivates images, shitposts, and other low effort posts.

All this will be considered spam.

6. Don't post crappy tanks, just to ridicule them.

This refers to tanks posted specifically for the intention of ridicule, antagonization or brigading.

7. Do not repost the same content within a month. Also keep some time between your posts.

Keep AT LEAST 24 hours between posts. If someone scrolls the main page only a few rows down and there are multiple posts of you, well that's a good indication that you are posting way too much.


Related subreddits:

/r/aquarium

131,100 Subscribers

2

Lonesome glowlight rasbora

I'm certain I have a glow light rasbora with my harlequins. ( ff to 0:18m mark, upper left) When i bought the harlequin rasboras, there was an almost fry size fish in the bag. They were all stressed so they went pale. Now that it's grown, this little fish does not look like the others. I currently have 6 harlequin rasboras along with Glow-boy in a 20 gal. I'm sure this fish is stressed without some that look like him so Id luke to know how many more fish my tank can accept regarding tank load. I'd also like bottom feeders, seems like shrimp may be my only option if I add more fish. It's well planted (some melted plant rebounding slowly), soft water, 6.8 pH, lots of water movement.

2 Comments
2025/02/01
21:08 UTC

1

Angel fish community

0 Comments
2025/02/01
20:09 UTC

1

Straight reaching to heaven

Every day this guy gets closer and closer to the surface. Today he finally broke it, lets see how far he gets :)

(Yes i know my amazon swords are wilting idk what to do 🥲)

0 Comments
2025/02/01
18:55 UTC

2

Fine bubbles please

I'm looking for a air stone that makes fine bubbles. I've bought a few air stones advertising fine bubbles but even with prior soaking the bubbles are still too large. Do you have a favorite? Thank you.

2 Comments
2025/02/01
18:19 UTC

0

Do I need to do a mini cycle?

This past Monday I decided to change the substrate on my 29G tank. I still do not see any Nitrates. Do I add some bottles ammonia or Stability? How long do I wait before I move more fishes to the tank?

8 Comments
2025/02/01
17:43 UTC

1

Help identifying disease on platy - ich, fungus, or bacteria?

Was out of town for a couple days, came home and found a new fry swimming around in the tank and one of my females with white spots on her body. Assuming her giving birth stressed her out and allowed her to catch whatever is ailing her. Momma platy otherwise appears happy and healthy, but has some sort of disease on her body. Still swimming around happily with fins on display (not clamped).

She's been in a hospital tank now for over 48 hours, no signs of whatever is wrong with her getting any worse. Hospital tank has water from the aquarium and about a teaspoon of aquarium salt. All other inhabitants of the main tank are happy and healthy and not showing any signs of stress.

I'm on the fence on whether to treat this as ich or fungal. First thought is that it was ich, but I thought ich were tiny little dots like a needle head and would be on the fins too, whereas I thought fungal infections would be more "hairy" I also see melafix saying it'll treat white spots too, so thinking about treating with that. Thoughts / diagnosis?

https://preview.redd.it/hmag59c0hjge1.jpg?width=3000&format=pjpg&auto=webp&s=a51b80bea35b7f321dacb59b95b38bd480a49307

https://preview.redd.it/wq15whc0hjge1.jpg?width=3000&format=pjpg&auto=webp&s=2b4a82a009c4d6ee2f68235fdd5abe1ee5617abe

1 Comment
2025/02/01
14:39 UTC

300

I have no one to share this sleeping pea puffer with who might care

He/she sleeps here every single night. The others are all scattered elsewhere. Last night I did catch another one sleeping on a leaf though!! I have had them for a little over a week. They are so much fun to watch.

18 Comments
2025/02/01
09:31 UTC

4

Pre spawning ???

Is this some type of spawning / breeding behaviour , she's been here for a while today and doesn't seem to be coming out , my male has spent time in both of these caves.

I'm not sure the exact age of the pair but i have had them for ~8 months and they was already 1.5/2 inches. I measured lately against the glass and the female is near 4 inches and male slightly larger.

Her belly has also become very rounded lately

0 Comments
2025/02/01
09:11 UTC

2

Hard piped FX4 day 1

In line heater controller is on the way. I’ll be tapping a CO2 line into a Tee on the return side and having controller temp stats tapped into tees on both supply and return.

Planing to finish the cabinet pipe work tomorrow so I can rough in and paint the exterior pipe work. And hopefully have it finished out Sunday for leak testing.

0 Comments
2025/02/01
05:27 UTC

2

60 breeder- let's talk stocking!

I probably have another week or so before I can get to my favorite fish store, and I'm having a lot of fun looking at my options for my newly cycled community tank. So far I have it lightly stocked with a few kuhli and purple loaches, and a small group of guppies and assorted snails. I'm looking to buy smaller, vibrant and peaceful community fish. The only things I feel pretty sure on are a group of rummynose tetras. I will likely add some cory cats- but even then I'm not sure what kind to choose!

My tank is heavily planted. I'd like to maximize my community but I'm pretty open to ideas.

1 Comment
2025/02/01
05:13 UTC

5

tank leaking can i use a bucket for a bit

can i put my betta in a big bucket with its filter and heater??? my tank is leaking. i'm so upset and worried its the middle of the night

3 Comments
2025/02/01
05:04 UTC

3

Brightwell Blackwater conditioner opinion?

What do you think about this product? Is their better ones? I have harder water at my new house and I don't have an RO system so tannins is the best way to decrease the ph

2 Comments
2025/02/01
03:16 UTC

1

Hornwort question. Why does my hornwort disintegrate?

Why does my hornwort thrive until it decides to disintegrate? Nothing changed, same water parameters, light, fish, etc. I love a big chunk of floating hornwort, but it craps out and clogs everything up. What gives?

11 Comments
2025/02/01
02:53 UTC

2

Bloated neon tetra?

I noticed one tetra is bigger than the others, it has faded color and less active, had one with the same condition and didn’t make it. Is it a disease or a health condition? How do I treat them

0 Comments
2025/02/01
02:47 UTC

1

Guppy in the foreground with the long tail - M or F?

9 Comments
2025/02/01
00:25 UTC

1

did I just crash my cycle...?

I was doing maintenance on my aquarium and had to take a discord call to help a friend with studying, problem is, I forgot to turn my hang on back when I went on discord. It stayed off for a bit over an hour with the sponge having basically no water.

Do beneficial bacterial survive that long? the sponge wasn't dry, per say, but it had no access to water outside of what was contained inside it. My tank is lightly stocked and I have a running sponge filter in there (proved to not be able to handle the tank by itself), how worried should I be over my cycle?

11 Comments
2025/01/31
23:20 UTC

2

Has anybody experienced this before?

I just recently added a clown plecco to my aquarium, which up to this point housed only snails and shrimp. Today when I came home I saw my snails forming a ball around something, and I found out it was a dead cherry shrimp. I checked around the rest of the tank and found 4 more dead cherries clustered right in my clown pleccos favorite hiding spot. That doesn't seem like a coincidence and I don't know how to make the plecco chill out. He never ate any of them, just left them to the snails.

1 Comment
2025/01/31
22:12 UTC

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