Feeding Your Aquarium Fish - The Spruce

About 1,800 tropical fish species are involved in the international trade, says of the New England Aquarium in Boston and Roger Williams University in Bristol, Rhode Island. Hundreds more species of invertebrates, including live corals, are also part of this pipeline.

Are there any fish missing? Is a dead tropical fish decaying unnoticed behind your aquarium decor?

If you already have an aquarium, we'd love to hear about your fish and see pictures of them! You can share your aquarium and its inhabitants with your Wonder Friends by posting pictures on . We can't wait to see your aquatic friends!

Missing Aquarium Fish - The Spruce

I wonder how you got the wheel spinning in the aquarium. Where did you get the fish? Develop a working sense of how much and how often to feed the fish in your saltwater aquarium. Use the guidelines in the following list and keep in mind that it’s definitely better to feed them too little at first than too much.

Swim Bladder Disorder in Aquarium Fish - The Spruce

I have to say, though, that I’ve never found this to be a problem. I currently have a nearly 4-inch specimen in a 70-gallon aquarium that doesn’t seem to be the least bit bothered by any of the other fish that come into its territory, though it clearly claims one side of the aquarium. Its tankmates include harlequin rasboras, rummynose tetras, kuhlii loaches and a few others. Of course, none of those fish share the same shape and color as the shark, so they aren’t perceived as a threat.

Saltwater Fish: Marine Aquarium Fish for Saltwater Aquariums


Watching flamboyantly colored fish flit about a saltwater aquarium can be relaxing. Figuring out where they came from, and whether they were caught in a sustainable manner, can be an exercise in frustration.Clownfish were one of the first species of marine aquarium fish to be bred in captivity, which likely has helped protect wild populations from overcollection.They’re in your dentist’s office, in restaurants, hotel resorts, and homes all over the world. The saltwater aquarium, with its bright coral and even brighter fish, brings a piece of the wild into your living room.Walk into any pet or aquarium store, and you’re going to find . That orange-and-white-striped Nemo is practically synonymous with saltwater aquariums, and it’s one of the first fish new hobbyists turn to. It was also one of the first marine aquarium fish to be bred in captivity, back in the 1970s. Today dozens of varieties are available from breeders around the world.