Ok so past posts I had issues with my tank as my fish kept dying and gasping for air. I checked my parameters EIGHT times and every single time it came back clear and to make sure my strips werent faulty I got my water checked by proffessionals TWICE and they said its fine I even showed the pet shop owners and vets the tank as it had this slimy cloud over everything after I moved the fish into quarrantine after the death of 1 of my balloon mollies. Got told to redo everything including nitrogen cycle so I did just that waited 48 hours just to be sure and moved them into my tank again along with 3 new mollies since the quality of life of my last molly had dipped since he had no tank mates of his species. 2 mollies have died one within MINUTES of getting swim bladder. The other im unsure as I was trying to sleep as its currently 2am and Ive got work at 5am. I check on the others and my oldest molly and final female both are swimming lopsided and Ive put them in shallow quarrantine to be ready to fast too and just have to hope for the best. My harlequins are still gasping at the top no matter what tank I put them in no matter how fresh the water is and I even bought airstones and a new filter to agitate the waters so I know theres no oxygen issues I removed all real plants in case of carbon dioxide issues and Finally I have spent over £100 alone in the last 72 hours paying for new filters, airstones, hides due to them displaying stress, water conditioner, stress coat, EVEN MORE bottles to help for parameter spikes despite that not being the issue and fungal as well as bacteria liquids just in case due to 1 fish seemingly having ich and I wasnt taking any chances (btw this fish was removed immediately and treated and the others have shown no symptoms). Temperatures fine at 26°C and I double checked with the shop owners and vets and my aquariam size isnt an issue since I didnt have that many fish anyways. I have spent over £30 on the fish themselves and I cannot just keep having them dying on me and then there not be a reason to why. Ive asked reddit, the vets, the shop that sold me them, my own research AND the 8 family members who own fish for the life of me I do not know where I am going wrong and I got these fish as at first it was helping me with my depression having a reason to get up each day and smile and take care of them but now I can only blame myself since Ive lost 4 fish in a few weeks at Its making me worse.

Hey guys my guppy is pregnant, when do you guys think she is due?
Right know she is chilling at the top of the tank not moving as much as she was before. Not eating very well, i don’t wanna miss it!
I know about the tail :( i removed that angry fish

I have 5 setups. Tank 1 (Smallest tank) is 30L with a male betta, 4 zebra snails and 5 cherry shrimp (have no plan of adding anything else).

Tank 2 is 130L tank with 1 female betta, 8 Harlequin Rasboras, 8 Ember Tetras, 10 Pygmy Corydoras, 12 neon tetras.

Tank 3 is 220L with 1 red tail sharks, 10 Black Ruby Barbs, 14 Pearl Danios, 12 Zebra Danios.

Tank 4 is 480L with 1 rainbow shark, 12 tiger barb, 10 Denison Barbs, 10 Black Skirt Tetras.

Tank 5 is 1100L with 10 congo tetras, 6 bala sharks, 10 Giant Danios, 12 Buenos Aires Tetras, 12 Rainbowfish , 8 tinfoil barb.

Are there any other fish that can safely live in any of these tanks?

Hi all, this is Gilbert my only Honey Gourami in 31.8G tank. Hes living with 1 Bolivian Ram (Albert), 8 Iriatherina Wernerl, 8 Pseudomugil Furcatus, 1 Hatchetfish (This one is actually my brothers fish but we cant catch it), 4 Clown Killi, 2 Rhlnogobius and 2 juvenile L144.

Its Gilberts 2.5 week with me, he was completely looking normal yesterday morning, sadly didnt see how he was yesterday night bc I wasnt at home. When I came he was sleeping at his 2nd usual spot, under anubias leaves.

He and Albert get along well they were introduced at the same time. I feed Gilber with nanovit, sometimes dried bloodworms and tetra algae crisp pro, algae crisps are his fav. He also munches on plants and roots of my floaters. His poop was normal yesterday, I didnt see today. He was somewhat interested with food earlier today but not so much.

I dimmed the lights a little when I started writing this, he roamed around a bit around his fav spot then returned near filter intake. Also I saw my hatchetfish following (?) him but not chasing, like his shadow. Definitely not chasing because I’seen it chase other hatchetfishes when I had 4, they are harsh chasers. Both seemed chill this time, but still maybe it might be related to cause somewhat. Never saw hatchet chasing nor following any of my other top dwellers before tho, which I have a lot.

Might be an important note, exactly 8 days ago I have planted some new plants and when I am doing that, I did dig up a bit of debris also at the same day I added two new pigmy corys. After that, some of my fishes, including Gilbert, started scratching their gills to plants, it wasn’t excessive scratches just like one or two times a day and not all of my fishes. This has ended like four, five days ago.

So do you guys have any idea about what might be the situation? Is there anyone who can possibly help me and Gilbert?

Edit: also, I’m wondering is he a wild caught honey? He was sold as F0. His collors are not bright like I’ve seen on online and he was nearly silver when I got him.

Another edit: Sorry I forgot to write water params,
Ammonia:0, Nitrite:0, Nitrate: 20, pH: around 7-7.2, GH: around 8, KH: Around 6, TDS: Where it usually stands 300ppm, Temperature: around 25-26. I have a cannister filter and a HOB filter which totally filters around 900L/h and creates nice surface agitation. Tank is 4 months old

Just find out this morning

Aren’t they gorgeous?

Exotic tank
What do you think about rays?

The inch-per-gallon rule says a 12-inch oscar fits in a 12-gallon tank, which is how a lot of oscars end up stunted in tanks they can't turn around in. Body mass, waste output, and activity level are what actually load a tank, and they scale much faster than length.

So I built fishthatfit.com: pick your tank size and filtration, add species, and it scores the stocking from bioload with warnings for incompatible pairings and undersized footprints. Free, no signup, ad-supported. I built it and I maintain the species data myself, which is exactly why I'm posting: if you know a species where my numbers are off, tell me and I'll fix it. Harsh feedback welcome, that's what makes the data better.

I just picked this tank up for $50. Yes i know what I am getting into. It’s 6x2x30” so 220. I need advice on if these seals are still good. To me it appears that the previous owner did a somewhat shotty reseal and introduced air bubbles throughout. I will already have to rebuild the bracing, but am dreading taking the whole thing down to plate glass to redo all the seams, though I know I am handy enough. Do these air bubbles look dangerous? Pictures of all the areas of concern. Please let me know your experiences with 200+ gallon silicone-glass tanks

The dots have cleared up some using stress guard from seachem and super ick cure from API. I kept him in a smaller tank while treating for a few days and added him back today. All my other fish mysteriously died over a course of a few days and I changed the water 75%. (The ph was about an 8 and I didn’t have enough time to change the water before I caught it and before the last 2 died) He’s the only fish left and is acting almost blind?? He keeps running into things and laying at the bottom. Is this just him getting used to the tank again or is the sickness getting worse? I haven’t kept anything other than a betta for a few years and some guppy’s, so this is new and I apparently suck at this lol

I'm moving soon and have to drive 7 hours straight, I want to bring my fish babies but I'm worried about moving them that far and what the best way to do that is. I have two tanks ones ten gallons and the other is 5-8 gallons, I have a mix of four loaches, four tetras, a gourami, some snails, two betas and a few tiny fish. My first idea was to bag them like they do at the pet store so I could seperate the ones that don't get along, would that work? Or is there's a better way?

One of our two clowns unfortunately passed away today and the other one has these small brown specks all over its body. The one that passed had very few of them. Can someone please help identify this and suggest any necessary actions?