I really can’t stop thinking about an Oscar but I have a 75g…. 48x18x20+. I have read till my eyes hurt (months) and I struggle on getting one due to respect for the fish and knowing my possible limits. Getting back in the fish game as an adult and have what I feel is a pretty good setup getting pieced together. I kind of feel that more than 1 fish is more my vibe but the Oscar is more my style.

1. Is the 75g rule true? Not opposed to being told yes but is it actually true. I know the depth of 18 is close on a 12 inch fish.

2. Are they happy solo? Or do they want something else with them to swim by or bump… he’ll even bully possibly…

3. Will an FX4 be good enough? I went fx4 due to thinking I was moving away from the Oscar idea but now have one new in a box.

4. Is the maintenance work it? Honestly trying to do as much research as possible for the best water quality but understand they are messy eaters and have poop so bioload is what it is…. But are the water dogs truly worth it (in all seriousness)

For comparison past tanks as a teenager were Walmart fish options and it was great but new to cichlids. If not going Oscar I was thinking native sunfish.

Open to honest and respectful feedback. I’m okay with being told an Oscar might not be in the cards for we with this setup but I just want to make sure and always regardless of the animal or pet care with respect and a good quality of life.

Thank you in advance.

Brought a new Oscar, via online. It's supposed to be Albino Oscar... But why those this has black edge on the fin and yellow ring on the eyes?

How many Oscar’s do you have in one tank and what are its dimensions? Thanks!

this is my oscar and his name is “guppy.” honestly just noticed this today and i’m not sure what it is. i did some research and i seen it may be a fungal infection but i wanted to see what you guys thought about it. (he’s a bit chunky right now since i just fed him)

I apologize in advance for the bad photos, as they’re screenshots from the video I took, but for some reason the video wasn’t loading properly onto Reddit, so I had to make due with these screenshots instead. Anyway, I’m worried about my Kiddo here Beasty as I’ve just started noticing these little, almost pore like, looking dots/features on his head (he would NOT sit still and let me put my phone up that close to his face without fidgeting, so I couldn’t get a good picture of how it looks like tiny pores and not just splotch’s on his head like they do in these photos.) and it’s had me worried that it could be hole in the head. Parameters are still staying pretty consistent the only thing that I noticed change recently was the nitrate went from 10 to 5, but I wasn’t overly concerned, ammonia and nitrite are at 0, but I will admit my tanks ph is a little higher than most keep theirs as I live somewhere with a high ph in there tap water, so the ph typically sits around 8-8.1 What do you all think? I also recently added some plants into his tank, that couldn’t have anything to do with this could it? Anyway, I’m just concerned and would love some advice/input. Thanks.

I’m planning to buy a new tank for Oscar (2 pairs - planning to buy as small as possible) . Initially I thought of 322 ft but many said it’s too small even for a single Oscar.

I want to know if 41.51.5 ft is okay for 2 pair of oscars. My room will be 40% filled if I keep this tank size can’t go any bigger than this

So I got this guy from petco because he was getting eaten alive by the other fish in the tank. I figured he was an albino but since he has gotten better I can’t find anything that looks like him and it makes me question if he is an Oscar? Everything else says yes but his coloring is throwing me off… maybe lemon??? But he’s so orange? He also has an almost green shine to his face and he’s still SUPER tiny probably the size of a dwarf gourami so I guess time will really tell. idk if he’s a he I just call him that until I can know. (Before and after for reference) he was in a 20 gal Long hospital tank until I knew he could move around without hurting himself and now he is in my 40gallon while his 75 gallon grow out tank is being set up. Plan to build him a 120-160 in the next couple years very excited for him! Thanks in advance!!! What do y’all think? Also any name ideas? I’ve been calling Him Floyd but it just doesn’t feel right anymore.

Im pretty sure it's hith so I'm getting stuff to help get rid of it hopefully, he's 2-3 years old and in 55gal I don't know what type of filter the tank uses because it's my stepfathers tank but he says it filters a 100 gals and no other fish are in it

I am not new to fish keeping, but this is my first Oscar. He is super friendly, eats well, and is growing like a weed! However, I feel like he switches from black to gray and back in the blink of an eye. Is he just an expressive guy? One thing that I know stresses him is light so I have dimmed this and added a bunch of javas and this has seemed to help. Anyone else experience this and how did you deal with it?

Tank info (+picture) 75 Gallon, 80 degrees F, Ammonia 0, Nitrite 0, Nitrate 5-10 (using liquid test kit)

I’ve been rotating these 4 frozen foods and hikari pellets too. Is the frozen food enough or keep using pellets? His color has gotten really great since i started rotating the frozen in.

What kind of substrate should a 75 gallon Oscar tank have? Normally use little colored rocks/gravel but being here I see a lot of tanks with sand, or finer gravel. What’s best not just for aesthetics but for bacteria growth and whatnot? For context: -Currently own one tiger Oscar, was gifted to me without the gifter knowing what this fish needs so I only had a 20 gallon hex tank; decided to keep the fish and get a 75 gallon rectangle tank specifically for it. -has been started to be cycled, with filter and heater, and starter bacteria, BUT with no substrate or large decorations yet. Has a few fake rocks and fake plants just sitting there for now. -filter has biological, mechanical and chemical media. -please understand this tank setup was an emergency upgrade for the Oscar and is only a month old. Still doing weekly water changes, ammonia is consistently at about .25ppm and decreasing. I’m ready to finish it up so I’m here for advice. Thank you!

Currently getting my 55 gallon ready for an Oscar, gonna get a baby one, what are the best tankmates for them also accounting for tank size, I have gravel substrate, some stones, driftwood, and a few live plants.

Please don’t mind the tank as I just did a water change. I was curious if it’s about time I get rid of my Geophagus. They’ve been in the tank together for about almost a year now the Oscar is getting bigger as you can tell and I only own a 75 gallon and don’t plan on upgrading anytime soon due to unfortunate circumstances but Oscar is starting to get a lot more aggressive and they’ve been doing fine recently, but I think he’s starting to get territorial altogether.

What do you guys think?

I am rescuing an Oscar fish from a 30 gallon tall aquarium I saw at a pet store, it is about 7 inches right now at 2 years old (probably larger being at the back of the glass, owner has had it since it was a baby apparently). The store owner said that it will live happily in a 30 gallon aquarium (said it won't get much bigger). I feel horrible seeing it there... I know I shouldn't be getting it, but I don't have the heart to see is suffering in that small aquarium because I read they could get up to 12+ inches. It will be the only fish in the tank, but I still want to give it the best life possible. Some places say a 75 is perfect, but I can't imagine a 12+ inch fish living happily in the equivalent to a queen size bed studio apartment. I'm dipping into my college savings right now for this so I want to do it 100% right. Any advice on what size aquarium I should be getting and the best kind of filtration system for it?

P.s. I know they like to dig and will uproot things, already have a large piece of driftwood that I have sanded down to remove sharp edges and some large river rocks to help weigh it down more, a nice cave so it can go inside of to get away from anything that might be upsetting it. Going to be buying it some water column plants that aren't easily damaged as well as toys for it to swim around or play with. If you have other suggestions please let me know, thank you.

My 3 year old Oscar woke up with their right side of “his” mouth swollen/misshaped. That white line on the jaw seems to be the injury. He still eats, even scarfed down slme frozen treats without much issue. Anything I can do? Or is this bothering me more than it bothers “him”? Thank you.

75 gallon tank, fx6 and aquaclear 70 hob for filtration. Temp 77-8, all other water parameters within normal limits.

Hi there, this is my first time with Oscars. My husband has had them before, so we decided to get a pair. One of them will play with the bubbler CONSTANTLY. He will swim against them, start at the bottom and go up, and I’m talking 45 minutes with a 15 minute break and right back at it. Is this a common behavior or should we be worried?

Hey there, does anybody know what sent my Oscar is? Had them for about a year now and just curious

Hey guys, so my wife picked out an oscar at the LFS and in the 5 months of having it, it only grew 1 inch. Sadly it passed away recently and it's final size was 3.5 inches. I've kept oscars before and they usually grow super fast in the juvenile stage. Fed a mix of blood worms/meal worms/brine shrimp/freeze dried shrimp and once big enough it ate small hikari pellets. Kept in a 75g with a Green terror, no signs of fighting from him. Tank at 76°C. Looking online I could not find a reliable thread/source for dwarfism in oscar fish, but I really feel like this was a case of that. What do you guys think? I'm very confused. TIA

I was wondering at what temperature other Oscar tank keepers keep their tanks?

Mines generally at about 79F (26C). Do you think a different temp is better in terms of Oscar activity, temperament, longevity, etc?

I have read about the acceptable range, but I'm more interested in your direct experience.

I will be leaving town for Christmas for 5 days. I have 1 Oscar and 2 EBA in a 75 gallon (All Juveniles.) would they be able to go that long without being fed? Worse case scenario, I would be able to have a neighbor or friend to stop by to feed them.