Once you gain more experience in keeping conditions in your saltwater aquarium tank stable you can add a few other varieties of fish. Choose from hawkfishes, grammas, dottybacks, basslets and wrasses. But make sure to find out about how to take care of them properly because some are not as easy as others. However they are a much easier bet that angels and butterflies.
So which saltwater aquarium fish should beginners avoid? You should not attempt angelfish, butterfly fish, pipefish, seahorses, long-nosed filefish, blue ribbon eels, stonefish, and Moorish Idols as well as mandarin fish until you really know what you are doing.
What about invertebrates? Contrary to popular belief invertebrates are well suited for mini or micro-reef tanks. Many invertebrates do well in non-reef tanks. For the novice aquarist the hardy species are best. These include shrimps like the cleaner shrimp, blood shrimp or peppermint shrimp and coral banded shrimp. As is the case with saltwater aquarium fish, stick to the hardier shrimps to begin with.
Anemone crabs are another option you might try along with your saltwater aquarium fish. And why not add some sea urchins and starfish which are quite well suited to beginners with a couple of month’s experience? They differ in size, shape and color and some are poisonous so be careful! Sea urchins and starfish eat detritus and algae and other small bits of food so they will help to keep your tank clean and your saltwater aquarium fish healthy.
Anemones are not really suited for beginners. They need special lighting and top-notch water conditions so if you can’t foot the bill for the lights stay away or you’ll live to regret it. Invertebrates you should avoid include tridacna clams, flame scallops, Octopi, Nudibranchs, or any hard or soft coral and sea squirts. Like the saltwater aquarium fish listed previously these invertebrates have special feeding and living requirements.
When you choose saltwater aquarium fish, you need to bear in mind that they are a bit more expensive then the freshwater varieties. For this reason you should take care with them and try to keep them alive. When fish are captured and moved from the store to your home they are liable to get stressed, especially since most of them have been taken from the ocean mere days ago. So make sure you can properly care for your new friends before you bring them home!