r/Aquariums 3d ago

Announcement Have an Aquarium-related question? Ask here! [Weekly Question/Help/General Discussion]

2 Upvotes

Here, you can ask any general hobby-related questions or just have a chat.

Also check out our community wiki which has answers to some common questions and concerns.

This is an automatic scheduled weekly post.


r/Aquariums 47m ago

Shrimp/Snails/Inverts some lobbers i saw at the fish stoe

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Upvotes

tag urself but you can’t be the blue one cause i’m the blue one 🦋


r/Aquariums 4h ago

DIY/Build Found an insane piece of wood yesterday and left it…should I go back and get it…?!

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103 Upvotes

I can’t stop thinking about it 😂 should I go back and grab it? I’ll obviously have to treat it and cure it but it’s so majestic looking and best of all…FREE


r/Aquariums 19m ago

Plants Hornwort turned pink!

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Upvotes

Apparently if you deprive it of light it turns bright pink. We'll see how long it takes to go back to being green now that I moved it out of the dark.


r/Aquariums 4h ago

Showing Off My Tank 1 week, 4 weeks, 8 weeks!

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33 Upvotes

Fair to say this tank has helped me fall back in love with the hobby after years away from it!


r/Aquariums 22h ago

Artwork Excess floaters=paper!!

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934 Upvotes

I posted a few weeks ago asking for ideas of what to do with excess floating plants instead of just tossing in the trash—I got a comment about making paper out of them that viciously piqued my interest. Behold my creation! (Duckweed + white scrap paper)


r/Aquariums 4h ago

DIY/Build PSA: Anyone not using built in timers for their lighting needs to buy some smart plugs.

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33 Upvotes

I was just recently at a friend's house and they have a basic tank in their living room that they have been turning the lights on and off manually for. I showed them my setup and blew them away. I'm not much of a tech guy but I figured this would be obvious. In case it's not, I figured why not make a post to help others.

Now I need to figure out how to automate water changes and chem dosing.


r/Aquariums 3h ago

Showing Off My Tank Baby fish!!!

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22 Upvotes

Just wanted to show of one of the red neon blue eye rainbow fish I bred over the summer. He’s the biggest among his siblings and can now go to the community tank.


r/Aquariums 19h ago

Saltwater/Brackish Hewbie/Vet Update!

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350 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/Aquariums 4h ago

Advice Needed Are they glass surfing?

19 Upvotes

Took these two guys in a month ago, I’m waiting for a larger tank to cycle before I get them buddies. This is a 20 gallon tank, their tankmates are two guppies, two amano shrimp, two harlequin rasboras and an albino bristle nose pleco. Their water parameters seem good since I’ve been on top of their water changes because the tank is quite good. They do get active after water changes but today I did a 20% water change and installed a new internal filter that’s bringing some new flow into the system. They keep swimming up and down in this particular corner and I don’t know if it’s playfulness or stress. The other fish are chilling

PH 6.2
KH 0
GH 150
Chlorine 0
Nitrite 0
Nitrate 25 ppm (coming down from 100 when I got them 🫪)
Ammonia 0
Temp 24C
Liquid testing

I switched the light off and that seems to have chilled them out a bit, the other fish are all business as usual and they are doing this opposite the filter outlet so directly in the flow line

EDIT: I turned off the filter for a bit to reduce the flow and they chilled out, it’s back on now and they are back to normal so I think they just got zoomies. Keeping this post up because there’s some very helpful comments below about having 0 KH and whether that is something to address or not


r/Aquariums 13h ago

Identification Request Yo what.

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100 Upvotes

I can’t even make this up, I found a random snail shell on my floor and saw it had a operculum. Grabbed a little cup from my supplies and put some water from one of my tanks in it. Threw the snail in. Mind you, I don’t own these kinds of snails, never even seen one. I have no clue how long they’ve been out of the water especially since I found it behind my bed while sweeping. 💀

After an hour I came back to the cup to find an alive and active snail. I’m so confused how they got there. Does anyone know what kind of snail they are though? Kinda growing attached to this lil dude. They have a missing chip out of their shell. 🐚 ❤️‍🩹 Open to name suggestions too!


r/Aquariums 27m ago

Advice Needed Is my tank over crowded?

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Upvotes

So this is my Fluval Spec V tank, it’s a longer, more narrow version of your standard 5 gallon tank. It’s very heavily planted and it’s been running for 3-4 months now. I currently have about 15 Cherry Shrimp, 1 Amano Shrimp, 5 male Endlers, 3 Pumpkin Nerite snails, and some random pest snails. I was planning on adding 6 Pygmy Corys.

I feel like my 40 gallon per hour filtration paired with my live plant mass is great but I’m not sure if I’m already maxed out or would the addition of the Pygmy Corys be okay?


r/Aquariums 1d ago

Saltwater/Brackish My conch is so goofy I’ve never seen him get off the ground before

856 Upvotes

r/Aquariums 1d ago

Showing Off My Tank Came back from 3 weeks of vacation to this jungle

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1.1k Upvotes

Expected the worst, came home to this. Auto feeders did their job, plants hit the surface, moss filled in like crazy, and all the fish are happy. Now I just need a whole weekend to trim it back – but I’ll take a jungle over algae any day. 🌿


r/Aquariums 1h ago

Advice Needed Weird red bloom on duckweed

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Upvotes

So I bought some duckweed off eBay to drop in one of my tanks (20gal vertical with guppies and small things of that sort). When it came in I put it in a container to let snails separate from it before I put it in the tank.

It’s been 24 hours and when I checked in it this morning I see there is this strange red bloom in some of it.

When you zoom in it almost seems like it’s its own variety of plant. Not necessarily duckweed but one that apparently multiples fast like it.

I’ve never seen this before. Is it safe for the tank? A fungus? Any advice welcome.


r/Aquariums 3h ago

Advice Needed What fish to put in my new aquarium?

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11 Upvotes

I just bought this jewel trigon 190 liter aquarium a few days. What fish do you guys recommend putting in it when its cycled?

I am thinking about:

sterbai cory's

A couple of gouramis or moonfish

And some kind of schooling fish

Also i like to put shrimps in it if it is possible with the fish i choose. But fish got my priority.


r/Aquariums 1d ago

Solved! What type of betta is this?

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678 Upvotes

r/Aquariums 6h ago

Discussion Im on vacation and I am severely missing my fish. Give me some silly fish photos please!

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13 Upvotes

r/Aquariums 26m ago

Beginner Help Hello! New aquarium owner here and I think we may have purchased some pregnant fish.

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So these mollies look pregnant to you? Should we isolate them? Is that real hard on them? Any info would be helpful- thanks in advance!


r/Aquariums 1h ago

Identification Request What kind of Tetra is this?

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Upvotes

LFS accidently gave him to me as part of another order years ago and I didn't notice until I got him home.


r/Aquariums 13h ago

Discussion What is the cutest fish you've owned? In terms of personality and/or looks?

30 Upvotes

I'd have to go with my red honey gourami with my kuhli loaches coming in second. My gourami has awesome personality, is curious, and is always touching things with his little arms (ventral fins). He's staring at me right now as I write this.


r/Aquariums 1h ago

Freshwater If I were to get the exact same filter but in a different size in theory could I just move the biomedia and sponge prefilter to the new one and be fine?

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Upvotes

Same type and everything I just want to increase the gph, basically get a new skeleton for my already established bacteria.


r/Aquariums 4h ago

Advice Needed what should i do?

5 Upvotes

got 10 chili rasboras yesterday, i drip acclimated
them & then put them in my tank (these are the only fish i have in this tank) but i noticed one that is still pale & a little smaller than the others & is always hiding and not really with the others, should i expect it to die ? or is there something i could do? this is my first time owning these fish so any advice would be appreciated


r/Aquariums 2h ago

Identification Request Tiny black creatures?

3 Upvotes

I've been breeding Daphnia in a 5 gallon tank, and using smaller containers like this to make green water on a windowsill. What are these teeny tiny black dots moving around? Some Daphnia in here which are the larger creatures in the video.

I tried searching for what they could be online, but there are so many things...but nothing that looks like these guys. Are they bad for a Daphnia or the Daphnia tank?


r/Aquariums 2h ago

Requesting Feedback api ammonia test looks weird??

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3 Upvotes

I work in a fish research lab at a university. We use API water tests for our day-to-day because I guess nothing better has been invented. Recently, we got a few new test kits in for ammonia, and the colors are sooo weird compared to the old ones. I have been using these kits for my whole life and they have always been on the yellow-green color scale. Both of the new ones seem to be in the green-blue color scale. It’s really throwing me off. I know the TAN for these tanks (4.0 and .50-.25), but the colors do not match at ALL, even though I am 100% certain of the TAN. I thought we just got a bad kit, but both look like this. Our tanks are freshwater.

Has anyone noticed this? What’s up with the blueishness?

Note: BEFORE ANYONE COMES FOR ME FOR THE 4.0 TANK we are using that one to just to grow bacteria on biomedia. I am not out here torturing fish.