Since I’ll be off to buy a new goldfish tomorrow, I’ll write a little article on how to buy a new fish and what things to pay attention to.
The first thing is is where you’ll buy the fish. This seems like not much, but the best is to buy your fish from a reputable, knowledgeable seller. This way you can be quite sure that the fish you buy is healthy and that you’re supporting a good store!
If you’re there, you’ll probably see lots of different goldfish. The best thing is to have an idea of the fish you’re getting - the kind, the size.. Some golfish varieties tend to grow really big (like ryukins) and some are so delicate they require a tank with special needs (like pearlscales). It’s best to read lots about them and make sure you can provide the right care for them!
Next up comes the most important thing; the health of the fish. Make sure all the fish in the tank look healthy and active. Look carefully if they aren’t hurt, have signs of illnesses (red streaks in fins, fungus, bottom sitting or flashing..) or are stunted. You can recognize stunted fish because they have a big eye compared to their heads, and very long fins compared to their bodies. If there are any dead or sick fish in the tank, it’s wise not to buy fish in that tank! You wouldn’t want to end up with a sick fish. (I think I should make a more specific post on how to see if a fish is healthy..)
Another important thing is to quarantaine your fish, if possible. Buying and moving a fish can cause a lot of stress which impacts the immune system. This makes the fish more prone to disease. Fish can also carry diseases and introduce them to other fish that are in the tank. I always try to quarantine at least three weeks. You don’t have to quarantine your fish if it’s the first fish in your tank, of course!
I guess this is about it. Think buying fish through and make sure you have enough room for them, before you buy them! c: