/r/aquarium

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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.


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/r/aquarium

131,292 Subscribers

3

75 gallon blackwater stocking

I have a 75 gallon moderately planted blackwater tank, which is currently fishless cycling.

I'm stumped on what I should do for stocking. All I know is I'm sticking south american, and I need to have 12-14 corydora aeneus (a mix of bronze and albino.

I currently have 8, 5 bronze and 3 albino. Which is why I'm hoping to get more.

Parameters:

One side of the tank is 78ºf, other side is 80ºf.

PH is at a stable 7.2. Starting pH was 7.4, I had it down to 6.2 at one point, but it shot back up and stabilized at 7.2. I may try and lower it down to 6.6-6.8 with peat moss, but I'd prefer it just stay stable.

Kh is ~3-4, Gh is ~3-4.

Also, please ignore how dirty the tank looks, it's going through it's swamp phase, and I don't want to mess with it.

0 Comments
2025/02/04
04:27 UTC

9

Rate My Tank! 🦐🐸

11 Comments
2025/02/04
04:03 UTC

6

Rate My Tank!

2 Comments
2025/02/04
03:58 UTC

0

I made a self cleaning Fish Tank

7 Comments
2025/02/04
02:41 UTC

3

Setting up 75 peru tank stocking?

4 Comments
2025/02/04
01:58 UTC

2

Would these work well in my 29 gallon?

Fish:

  1. 8 Neon Tetras
  2. 6 Gold Ring Danios
  3. 6 Kuhli Loaches
  4. 1 Dwarf Gourami
  5. 6 Chili Rasboras

Invertebrates:

  1. 12 Cherry Shrimp
  2. 8 Amano Shrimp
  3. 3 Nerite Snails
3 Comments
2025/02/04
01:57 UTC

10

Why is my molly spinning in circles?

She’s been a bit off for a few days, especially after a water change. She’s been hanging out on the bottom of the tank, and today I noticed her swimming in circles. She seems thinner than usual, and I think my guppy is nipping her fins. Could the spinning be related to stress, or something worse?

7 Comments
2025/02/04
01:53 UTC

1

Thoughts on this product?

4 Comments
2025/02/04
01:47 UTC

7

Help! What are these?

WHAT IS THIS????? I FOUND 2 OF THEM

10 Comments
2025/02/04
01:25 UTC

13

The worst part about planting chain sword.

2 Comments
2025/02/03
23:43 UTC

1

Where can I find a lid with a light for a 40 gallon breeder tank?

6 Comments
2025/02/03
21:39 UTC

0

New tank: Low alkalinity - Normal pH?

New tank: Low alkalinity - Normal pH?

Brand new 10 gallon tank without fish yet. Newbie doing my research but i m confused here, as I am prepping my tank for fish.

My Tetra 6 in 1 strips show all good results (right?), except low alkalinity. pH reads neutral but alkalinity is bottom of the chart. I’ve been treating the tank with Seachem Prim and Seachem Stability for 8 days (Prime first couple days only). What do i need to do to bring up alkalinity?

Do i need a heater? I m looking to start with standard little fish, nothing crazy.

Is my tank ready for fish?

7 Comments
2025/02/03
21:18 UTC

77

Neon Tetra, original art

0 Comments
2025/02/03
19:05 UTC

1

Substrate Layering - Aqua Soil over Eco Complete?

I have a good amount of Eco Complete that I'd like to keep using, or at least not have to fully replace/dispose of. It's been good for my plants, but bad for livestock.

I was wondering if large-size aqua soil might sit on top of the eco complete, or if it would eventually be worked down underneath.

4 Comments
2025/02/03
18:35 UTC

4

Is it possible my tank cycled in 24 hours?

Hi all, new here. I got a used tank along with used aquarium gravel and some used decorative rocks. I rinsed the aquarium out and put in a brand new filter and heater. I dechlorinated the water by letting it sit out for over 24 hours in buckets then 24 hours in the tank with the lid open and the filter and heater on.

I just learned about cycling and went out and bought an API freshwater master test kit. I tested the tank water and got the following:

  • pH: 7.6
  • ammonium: 0.25
  • nitrite: 0
  • nitrate: 5

I thought this was strange since the water has only been in the tank for 24 hours so I tested my tap water and received the following:

  • pH: 7
  • ammonium: 0
  • nitrite: 0
  • nitrate: 0

Is it possible the tank has been cycled or well on it's way? I don't want to harm any fish so I'm thinking I'll keep testing the water for a couple more days, but if numbers stay consistent is it okay to introduce some fish in a few days?

20 Comments
2025/02/03
17:36 UTC

9

New tank

How's it looking...Any lovely ideas ?

4 Comments
2025/02/03
17:33 UTC

2

Snails Eating fish?

I woke up to my oldest neon tetra passing was too late to take him out, woke up to my snails surrounding and eating him. Should I just leave it for the snails, I feel bad but I know its natural. The PH and everything seems fine still. I think he just got bullied by the baby tetras.

7 Comments
2025/02/03
17:30 UTC

8

Guppy gang wars

(Pic of my boy Sherbert for interest, he is in his own tank. Couldn't get a decent photo of the guppies in question) Over the last 6 months I reduced my guppy population to only males in a community tank. I have some real beauties that were bred in my tanks. The 2 predominant ones are orange and black and blue and silver, approximately 5 of each. They're all delta tails and they all have chunks and rips. The fighting seems to be along colour lines. I've witnessed a full out gang fight and individual bullying, and it's always orange vs blue. I'm in the process of readying another tank so I can remove one of the gangs. It's not the tank - it's heavily planted, 32g, shared with 2 honey gouramis and 6 panda cories. Could it be because these males used to have females with them?

3 Comments
2025/02/03
16:11 UTC

48

How would you rate my tank on a scale of 1 to 10?

55 Comments
2025/02/03
15:48 UTC

6

Tetra losing color

I have 5 tetras in with 4 male guppies and a few cherry shrimp. It's a two ft 15 gallon tank. Water testing shows 0 ammonia, between 0-0.2 nitrite and minimal nitrate. The tetras color has been off since two days and the white area was growing so i changed 30% the water yesterday. The white spots are still there. What could it be? I tried to follow him as best as I could in the video. Didn'tstaye still enough for a good picture. Any help is appreciated thanks

7 Comments
2025/02/03
07:55 UTC

6

What plant is this?

Found these in their own little tank at a petco. Does anyone know what kind of plant this is and if it is ok to stay in the pot? Thank you.

6 Comments
2025/02/03
06:08 UTC

8

Ideas for tank

Any ideas for what I can add to this tank. Both fish and decor wise? I've tried to add plants but the severum uproots everything in sight. The tank is roughly 95 gallons. Dimensions are 48 × 30 x 15. Looking for maybe a couple medium sized fish and some small. Severum is super chill.

3 Comments
2025/02/03
02:36 UTC

5

What is this Gourami doing?

This is a female Gourami.(Fire Red Gourami but it has lost its colour) It has been doing this on and off over the last few days. Any ideas what this behavior is?

11 Comments
2025/02/03
01:58 UTC

1

Fish still distressed after power outage

Hi, I have a large freshwater community aquarium that has been running well for a couple years. About two weeks ago I had a lengthy power outage when I was away for the weekend and when I got home the water was probably 40 degrees and the fish were all floating upside down. I gradually raised the temperature and fortunately only ended up losing 2 fish.

Most of my fish are smallish-- gold barbs, congo tetras, etc, but I have two large blood parrots. One is doing fine but the other has been just hanging out on the bottom since the power outage and not swimming much. I noticed a red ring at the base of his pectoral fins a couple days ago, so I did an early water change in case it was a water quality issue, but I don't think it is because all of the other fish are doing fine. Today I noticed him laying on his side at the bottom for a bit. He does get as excited for food as ever but otherwise he is just very lethargic all the time. When he does swim it seems like it's difficult for him. He also seems to be breathing heavier/more often than the other one.

I'm guessing it's lingering trauma from the power outage, but does anyone have any suggestions for anything I could do to help him out? I'm hoping I don't lose him.

0 Comments
2025/02/03
01:41 UTC

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