How to Choose Starter Fish for Salt Water Aquariums

Saltwater aquariums are a big investment. They require more upkeep than freshwater as they have less dissolved oxygen. One of the biggest reasons that saltwater aquariums fail is owners tend to overstock the number of fish. A good rule of thumb to remember is that for every square foot, you should allow for 3 inches of fish. However, in the first six weeks that your tank is "cycling" (that is, the filter begins to run), you should fill your take only at 25 percent of its capacity. Here are some fish that make good choices during this process, as well as for first-time saltwater aquarium owners.

Difficulty: Moderately Challenging

Instructions

Things You'll Need:

• Cycling aquarium
• Reefs
• Coral
• Anemone

1. 
   Yellowtail Damsel

   Know that Damsel fish make excellent starter fish as long as you choose the right kind. Go for the Yellowtail which are the more tolerant of the species. Damsels are also pleasing to the eye, as they come in lovely shades of blue with yellow tails. Avoid Black and White and Domino Damsels which not only are territorial, but grow much larger. They prefer to be around reefs in a saltwater aquarium.

2. 
   Royal Gramma

   Keep in mind that Royal Grammas are another famous species of beauty. Multicolored and sleek in shape, Royal Grammas are hardy fish. While they can be territorial with their own kind (and therefore you should limit one to a tank), they tend to get along with other fish. Make sure that you have plenty of rocks so they can feel protected as they are bottom dwellers.

3. 
   Blue Reef Chromis

   Note that Chromis make excellent starter fish as they are not aggressive toward other fish, nor territorial. Some do prefer to be around reefs, though, so make sure that your tank has the right elements for the Chromis you buy.

4. 
   True Percula Clownfish

   Keep in mind that Clownfish are hardy and adaptable to a cycling tank, making them a great choice. However, some Clownfish will not like sharing the tank with other species of their kind. Choose the True Percula Clownfish, which is the most peaceful and tolerant of the species. They will need a host anemone, which not only benefits the Clownfish but makes a lovely addition to any tank.

Tips & Warnings

• While most fish secrete a growth-limiting hormone, in order to adapt to their environment, if you overcrowd your tank, there won't be enough oxygen for your fish. Buy an oxygen test kit to make sure that your levels are appropriate.
• Avoid over-cleaning your tank. Any algae or bacteria provides oxygen for the fish. If it becomes unsightly, consider the The Kole Tang, which will eat any kind of algae.

Resources

• Royal Gramma information
• Chromis information
• True Percula Clownfish information