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

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.

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 😩

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.

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!

im getting some

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?

Like barrina grow orbs or t5

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

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.

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:

1. Tetraodon schoutedeni
   
2. Carinotetraodon irrubesco
   
3. Humpback puffer (Pao palembangensis)
   
4. 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!

i already had this for one week and idk what this is its not fuzzy tho

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. :/

I got a plant from a river near Apple white in CA, And i’ve noticed this little fella swimming around exploring. I’m just curious if anyone has any idea as to what this could be?

Hey everyone!

Just wondering if anyone knows what my Corydoras are doing in this video?

I've noticed over the last couple of days that a few of them keep suddenly flicking themselves sideways against the sand, almost like they're scratching an itch. They do it for a bit and then go straight back to swimming around like normal.

They're all eating fine, breathing normally and seem happy and healthy otherwise.

My water parameters are looking good too.

It's a 110L tank with 10 Corydoras, tetras and a pleco.

Is this just normal Cory behaviour, or could something be irritating them? Has anyone else's Corys done this?

Any advice would be appreciated! 😊

UPDATE: HES OUT

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.

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

Can someone help me?

How do I clear up the water in my Aquarium?

Will a group of 3 Kuhli loaches be comfortable?

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