jellyfish have no brains, nervous system, eyes, and basically anything needed to know they exist, but some people say that they can, what is the answer?

LOOK AT THAT BRO

Is Gadiformes just the more technical term?

I came back after a long weekend to find his companion had died and, im guessing, the corpse was eaten by my 2 Cory’s. I’m upgrading them to a 20gal soon and when I do that I wanna get him a new friend so he’s not all alone. My grandpa thinks it’s a platty but i don’t think the body shape is the same

Help?

Saw this catfish swimming on the roadside footpath after a rain ( drains got overflowed by water, it might have came up to the road from the drains ig). From the look of it, it's build resembles to that of the wels catfish, but I am confused since they are not found here(Japan).

https://youtube.com/shorts/7WZjxpp0luA?si=VZtknY4hmClOuog7

So I'm moving soon and wanna make sure I do this right. I have two bettas, some Ottos, some snails, and shrimp. I have two (5gal) buckets w/ lids (to keep the bettas seperate obviously and I hear it's safer to keep them in dark during a trip), as well as a car adapter for the two small watt heater in both buckets. The trip is 17-20 hours long unfortunately as I'm moving across states. Would a small 5gal sponge filter work to not only keep the water fresher but would it also provide enough oxygen? I have everything else I need for it like the tubing and etc just not the sponge filter itself. Obviously I'd need two, one for each bucket. Thanks for the help!

It’s about 3” in length. Label I think says a type of Diapterus, but I can’t make it out to know for sure. The white lines that look like stripes close to the head are just a glare.

Yes it's from the meme. What is the bottom fish and why is be being sucked like this?

Just curious as I am very new to owning shell dwellers. I added 2 of them to my 40 gallon tank on 11/21. The. 11/24 I left for a week to see family for thanksgiving. Today 12/1 I find a third shell dweller in my tank. I currently have about 10 danios, 3 guppies, 10 shrimp, about 5 snails and last and certainly not least my 3.5 inch YBS. I know there are recommendations to not add fish in with turtles but I have been getting fish that are either too big for him ATM or too fast. And I know to not be broken hearted if he gets one of the fish. (He is the pet after all)

What I need help figuring out is if the 2 I purchased have already repopulated which I’m highly doubting based on the fact it was this quick and there’s only 1 extra that I can spot. Honestly though quite clueless on their reproductive cycle so not sure if they just reproduce faster with less babies or if I got a hideaway when I bought the 2. When I bought them the fish store did give me 2 shells with them that came out of the same tank. So I’m thinking the other could be a stowaway but between the 3 days I purchased and then left them for a week I only ever remember seeing the 2. The new one is also significantly smaller. Bigger than fry guppy or your average danio size but maybe a touch smaller than my pinkie. Any ideas on how he got there. Would be appreciated. Don’t mind but would like to know if they’re just going to start reproducing like wildfire. Is it also possible there was an egg in one of the shells and it just so happens to hatch in my tank?

Big Longnose Butterflyfish (left), Blue Head Wrasse (bottom right), Black Stripe Dottyback (top right)

I'm experimenting using RGBK pen to create colors based on additive color theory. Would be better if there's CMYK pen but oh well...