fish questions

If you could keep a prehistoric species as a aquarium pet, what kind would you want to keep and what size tank do you think it would require? I'm a big fan of Dunkleosteus, but with it being around the size of a great white shark it would need 5-10 million gallons of water. A smaller option...

I love dartfish and have been looking at acquiring this species. From what I have seen online they are not very commonly kept so I was wondering if anyone here had experience keeping them? I used to have common tail spot dartfish a couple of years back and always wanted another once I got a...

If you were limited to keeping a single species of fish (Anthias, angelfish, clownfish etc.) which would it be and why? For me I would go with Gobies, you get a lot of different colors, body types, and size range for them so keeping multiple in a tank would be okay if done right.

I’m curious if anyone here has had experiences with this fish as I’m interested in it but would like to avoid possible pitfalls. I plan on making a soft coral reef tank with a whitetail bristletooth, snowflake moray and arc eye hawkfish. heard australian dottybacks are vicious but different...

Will the new law going into effect June 11th 2023 affect my antibiotics for my aquarium ? Attached is a screenshot of what I am referring to. Thank you! Source https://www.fishick.com/blogs/news/fish-antibiotics-are-moving-to-prescription-only

I have a fifty gallon tank 48" long. I have decided to make it a clown harem tank. I would have 14-16 clowns and I was considering a tang and a sand sifting goby for utility. Any thoughts? I will have the tang moved to a bigger tank when it grows. I would also like a shrimp goby pair. That is...

General discussion and questions about my tank because I am noob at this I have many creatures, all caught from the beach with a net (even a 1 inch kelp bass) and I keep them in my 10gal tank, my dad is considering buying a 50 gal (this thread is suppose to last a long time so I might have a...

My pretty baby seemed to die overnight! I am new to the hobby. I don’t have any pictures of it suffering, but last night it was swimming on the ground and I noticed the crest of its fins seemed ripped in one area. I wasn’t sure what to do so I figured I’d observe it for another day before taking...

Ok so I have a couple questions Background info: Ive been running a 20g long saltwater tank for a month now with 2 regular clownfish and a Greenspotted puffer which I transitioned to full marine. And I’m 15 so I don’t have a lot of money to spend. Right now I’m trying to figure out what I’m...

Hello I have been getting my tank ready for a couple months now. There is a adequate amount of algae that is forming and steady. currently I have a tuxedo urchin, a couple snails, an emerald crab, and a banded coral shrimp. my tank is a biocube 32 my question is I’ve wanted to get a pistol...