It's not advisable to stick a goldfish and a placostomus (commonly known as a "pleco") together in the same tank. Goldfish prefer cooler water temperatures, while plecos thrive in warmer conditions. Additionally, the goldfish's size and behavior could lead to stress or injury for the smaller pleco. If kept together, it's essential to monitor their interactions and ensure they have adequate space and hiding spots.
If they are in a bowl they make a bubble nest and have babies. They usually put them in the corner or wherever the bubbles stick together.
yes
Do not, no matter what put a goldfish and a betta together unless you want the goldfish to die!!!
Shubunkins are goldfish, so therefore mixing goldfish with goldfish is usually not a problem. However, if the other goldfish are fancy then mixing them together would not be recommended.
no.
Never, just stick to fish food.
Since an oranda is a type of goldfish, they will be fine together
No, shrimp and goldfish should not be kept together in the same tank as goldfish may eat the shrimp.
yes
Yes they can, I have a guppy (amongst other fish) with 4 goldfish together and they are very happily living together :)
No. Goldfish are freshwater fish and tropical starfish are saltwater fish.
yes my goldfish and guppies go fine together