r/aquarium • u/Zojaaaa1 • 8h ago
r/aquarium • u/MercuryBeach_ • 20h ago
Discussion Indecision on stocking options
Dimensions are 82x40x40cm
Current occupants are adult bristlenose, 7 harlequin rasbora, 6 guppies, 5 striped kuhlis.
On my Wishlist.. cories (not Pygmies), diamond tetra, black widow or phantom tetra, 1 or 2 feature fish.
Obviously I can’t have them all 😭
Looking for opinions on best fit for this tank. New to tropicals, had to work with what came in the tank when I bought it. Shrimp aren’t an option in New Zealand! Am adding plants as and when I see healthy ones in local stores
r/aquarium • u/Agreeable_Sun5375 • 2h ago
Discussion kyathit danio questions
Really love the look of these guys and thinking about putting them in my new tank, which is cycling rn.
Was wondering for sny owners how their temperament is? Would they get along with ottos?
How many do you have in your tank?
Do they nip at plants?
r/aquarium • u/Unlikely-Biscotti-82 • 4h ago
Showing Off Scud lovers
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Any scud lovers in here? I have some in my shrimp tank and their population is booming! The ones in the betta tank are all gone. Must’ve been a nice treat 😩
r/aquarium • u/DrP1990 • 2h ago
Help Hardscape too heavy?
I'm setting up a couple new tanks in my basement as I've quickly become an addict since picking up the hobby. My hardscaping in my other tanks are all driftwood or ceramic. My question is, can I over do it with the rock hardscaping? Am I risking damaging or cracking my tank? The one on the left is my concern (29 gallon aqueon).
r/aquarium • u/joyce483 • 4h ago
Illness/Injury What is happening to my Danios?
Almost 6 months old tank ( stable in water condition (Ph at 7, nitrate/nitrite/ammonia 0 [ was cycled ] , but a bit high on hardness since our water is super spicy here ) with now something that seem to be attacking the fins and overall wellness of my danios ( redness at base of tail fins, frail tail fins, lost of body score and equilibrium). I have a 30gal tank with 12 Danios, 9 neon tetras, 4 platies, 2 horsefaces loaches, 2 boneros loaches and shrimps/snails. Everyone seems fine but my zebras are falling like flies for the last 3 days. No big changes were made in my tanks, except I'm now using filtered water to reduce hardness when I'm topping the tank. My male platy has for sure anger issues, but they are together since the beginning and Ive never had this issue. Is it Fin Rot? Fighting wounds? I will take any advise on treatments/ way of action. The sick ones are now in my hospital tank with Kanaplex and methylene blue treatment. Thank you for your help!
r/aquarium • u/MacaronNo336 • 5h ago
Help Nitrogen Cycle question
I’ve had this tank going for a month now I think. I feel like my cycle has stalled or something. At one point last week I had nitrates over 40 ppm, so I did a 50% water change. Nitrites have shot back up but nitrates staying steady. Any ideas what’s going on?
Water temp is 74 degrees
I have snails inside for now
r/aquarium • u/NextOil5959 • 29m ago
Showing Off Starting my hardscape for a new 125 community tank. So hype about this wood lol
r/aquarium • u/Admirable-Way-876 • 4h ago
Photo/Video Tank in process
Can I feed my squeaker cat and ropefish very small chunks of fresh cut swordfish. I caught the swordfish yesterday and I think it would be good food for my two larger fish. I cleaned it up nice and rinsed it well. Cut into quarter inch chunks. I think my keyhole cichlids would like it as well.
r/aquarium • u/UnionHelpful8135 • 6h ago
Showing Off Shoutout Imperial Tropicals for my first ever delivery (Pundamilia Nyererei)
I finally bit the bullet and decided to order some of my favorite species online. Nowhere even had these except IT who only had 6 unsexed 2-3”. I received 3 M+F each and they look awesome. The males got their reds within 30 mins of being out of their floating bags and into the tank.
Theres a slight belly indent to monitor on them, but hopefully that’s just the 3 days of processing and shipping without food.
This was my first online purchase and while I hated the transit time, I’m so happy with these, so far.
r/aquarium • u/MrZetec • 8h ago
Discussion Aquarium Decor
So I recently made a post saying I didn't know what I wanted to do to decorate my aquarium, I have small live plants that I plan on putting in the front and 2 fake plants already in as you can see, any recommendations on what you would do differently? I'm going to keep the lid off as I sorta like how the driftwood is poking out of the surface.
I'm going to be getting a beta, some shrimp and snails and also, should I get the shrimp and snails first or the beta first? I want to minimise the chance of the beta killing the shrimp and snail
r/aquarium • u/Either_Extreme8181 • 12h ago
Help Can anyone help and identify if this is Blackbeard algae
i already had this for one week and idk what this is its not fuzzy tho
r/aquarium • u/Zacx1x2 • 16h ago
Help Silver tip tetra
Recently invested in this 4ft aqua one tank
Stocking consisting of
X6 black phantom tetra
X1 rummynose
X5 black neon
X1 glow light
X12 cardinal
X12 silver tip tetra
Kribensis pair plus additional femal
The silver tips are the newest addition I had seen mixed opinions on mixing them with slower fish such as cardinals they have been in about a week they are obviously frantic swimmers and can be pretty pushy and starting to think maybe I have made a mistake the cardinals stay as a group most the time and are usually in and around plants/cover the silver tips tend to be scattered everywhere not really in a tight school I did witness some chasing from a silver tip on a cardinal this morning very briefly idk weather to stick it out or step in now… thoughts ?
r/aquarium • u/False-Stop5026 • 16h ago
Freshwater Will a group of 3 Kuhli loaches be comfortable?
Will a group of 3 Kuhli loaches be comfortable?
r/aquarium • u/Plane_Letterhead_575 • 16h ago
Illness/Injury Betta with pimple
Hello everyone, yesterday I noticed a small blemish on my bettas chin. He is behaving normally, looks the same still eats etc. water parameters are good, ph 8, nitrite 0, ammonia 0. Does it look concerning? He shares a tank with a gay corydoras if that helps
r/aquarium • u/Decent_Cell_8255 • 18h ago
Saltwater/Brackish Sleepy? Stressed?
Hello everyone!
I cycled my tank for four months,
Everything seems perfect so I bought myself a black storm clownfish! This is my first ever saltwater tank so my first clownfish as well, I can’t wait to add some other fish to my tank but I’m not there yet!
When I got them home I acclimated my baby, they swum around for a bit and looked at the new tank, and then after a few hours I noticed that they would lay on their side, I assume because of stress but read that they can also sleep in weird positions- I just need someone to reassure me real quick and give me tips and tricks!
It’s also beeen hard to feed them but there is food on the sand I’ve seen them eat so yay! But yeah how do I do about feeding? Since there’s a wave maker the food goes everywhere:(
r/aquarium • u/DwemerCogs • 37m ago
Freshwater Does blackwater stain aquarium glass?
If you let driftwood tannin accumulate (instead of using purigen) does it leave a tint on the glass after the tannins eventually filter out?
r/aquarium • u/Independent-Club8124 • 3h ago
Help You guys got anything for triops?
im getting some
r/aquarium • u/HubaHuba1498 • 3h ago
Help First Time Tank Owner
Hi everyone. I am starting my first fish tank soon after receiving a 20 gallon tank for free. I am not sure how to start, but I did some research and I think I want Neon tetras, male platies, cherry shrimp, some nerite snails, and some plants such as flame moss. Will this work and if so, how do i go about adding everything in? What will I need? I don't want to spend a bunch of money, maybe $200 max if possible. What are your thoughts on this?
r/aquarium • u/Gustllllll • 4h ago
Help Can i use normal plant grow lights like barrina for aquariums?
Like barrina grow orbs or t5
r/aquarium • u/eryops75 • 5h ago
Help Two questions on aquarium setup.
For context, this is a 20 gallon aquarium currently housing eight zebra danios and two otocinculus.
#1 I've got an aquarium setup that probably needs a little tweaking. First, I've got an undergravel filter system, but only about an inch of gravel on it. I just, for the first time, tried setting some live plants in it, and they don't stay, and I'm assuming a deeper bed would help with anchoring them until they can root properly. I've never had issues with water quality with this shallow amount of gravel in the past. tl;dr I've got 1" of gravel in my under gravel filter. ideally, what should it be?
#2 I should really add a heater to the tank. This is the one I own. Currently, the water level only goes to where I've added the line. Is that too shallow for a heater? I don't know a ton about heaters, so if this is a 'wtf are you using a heater like this for--go get something new!' thing, I'd appreciate the advice.
EDIT: I realized there's no context to the heater. It is about 7" from the water line to the tip, so the current water level is about 1.5" below the recommended line.

r/aquarium • u/Adacux • 5h ago
Freshwater Freshwater puffer options for a 100L cube tank
Hi all!
My LFS just gifted me a tank so I’m trying to figure out what to keep in there. I already have a community w active fishes so Im keening on a bit calmer fishes that would do well in lightly tannin colored tank. For that Im thinking of planning a puffer-only setup in a 50 × 50 × 40 cm tank (100L / 26 US gallons) that will be a true freshwater, I dont want to convert to brackish if thats not totally necessary.
My favourites, ranked purely by personal preference rather than suitability, are:
- Tetraodon schoutedeni
- Carinotetraodon irrubesco
- Humpback puffer (Pao palembangensis)
- Pea puffers
I did quite a bit of research about them all and think water volume matches w what they need but im not sure if a cube shape is ideal for them so thats why Im asking here.
I’m drawn to a slightly larger, distinctive puffer, so schoutedeni is my favourite.
I really like how irrubesco look, but given their small size, I’m not keen on keeping just one in this tank—I feel it might look a little empty. A small group would interest me more, perhaps 1 male and 3 females, but I’m unsure whether this footprint would comfortably accommodate them as adults.
For Tetraodon/Spotted Congo, I’d keep just one since they are larger species, although again sinxe its a cube I dont know if it would be ethical and/or xomfortable for those guys.
I’m considering a lightly tannin-stained setup with fine sand, driftwood, leaf litter, plants and subdued lighting.
Hopefully plenty of cover would help them feel secure and spend more time out in the open.
My source water is around pH 7, GH 7 and KH 5, and I don’t have RO.
Which of these would you recommend for this footprint long-term? I’d especially love to hear from people who have kept them!
r/aquarium • u/Substantial_Junket68 • 10h ago
Help Missing fish
My boyfriend and I have a small fish tank. He knows most of the details so bear with me if I say something incorrect.
We have a 28 gallon tank I believe, 3 black mollys, 1 pleco, 6 rummy-nose tetras.
The other day we woke up, and noticed one of the black mollys was missing. We came to the conclusion after googling and dismembering the filter, that either they cannibalized or he jumped out and the evidence is gone due to a cat or dog… we have a lid on the tank that we are very diligent about closing after they are fed so it’s unlikely that he jumped out. Not really sure what happened & it still feels like a mystery.
HOWEVER, that same day we noticed a speck of a fishie swimming around the bottom of the tank. Upon further inspection, it’s a baby black molly.
(We joked that the most likely answer is the other fish invented a shrinking machine and that’s him all along he’s just tiny now)
I guess my questions are these:
Do black mollys have just 1 baby?
Do they die after laying eggs and someone ate the body?
Have you ever had a molly disappear and what did you decide was the reason?
We’re pretty sad about the disappearance of one of our babies. :/
r/aquarium • u/cobaltjacket • 12h ago
Help Emperor Pro 450 vibration noise
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Hi all. I have an 80 gallon tank with a red-eared slider turtle. All has been well for a while, but I decided to replace the filter, an Marineland Emperor Pro 400, with an Emperor Pro 450. I noticed a few things:
- The 450 seems much more powerful and has several improvements
- The 450 rides higher in the tank. I was getting much more splash noise until I realized I needed to raise the water level.
- The hood I used for the 400 (which fit snugly) does not fit the 450, so I need to find a replacement.
- The 450 motor seems much louder, and this is my issue. Everything seems to be operating nominally (ie. no impeller grinding, etc.) Just more vibration noise. While it falls into the category of "white noise," I feel like it should be a bit quieter. I just wonder if there's something I'm doing incorrectly. Here's a video from before I raised the water level - and yes, I am aware that I need to do more calcium cleanup on the tank itself.
r/aquarium • u/Nanagi1991 • 12h ago
Freshwater Browser Water??
Can someone help me?
How do I clear up the water in my Aquarium?