ENTER CODE: SUMMER2020
written by Dave Burr
Behavior: A school of Blue Green Chromis is sure to add sparkle and motion to any reef aquarium. This is a very hardy fish that seeks safety in large groups. In the wild, large schools of chromis cruise across the reef together looking for food and looking out for each other. In the aquarium, they seem to do much better when surrounded by a few good friends. Try groups of 3-7 in smaller aquariums, between 30 to 90 gallons, and groups of 12 or more Blue Green Chromis in larger display aquariums.
The Blue Green Chromis is not a threat to corals, clams, or invertebrates and does well in reef aquariums. Unlike Damsels, Blue Green Chromis are a peaceful fish species that does well with many other peaceful reef fish.
Feeding: Offer the Blue Green Chromis mysis shrimp and frozen herbivore preparations 4-5 times per week. Their diet consists mostly of meaty foods, however they will accept some algae based foods as well. Soaking all fish food with vitamins will help keep your fish healthier and make them less susceptible to disease. We recommend soaking food in garlic as well when adding new fish and whenever your notice ich or other disease in the aquarium. Garlic will help repel external parasites and will boost the fishes immunity.
Feeding Tips: Remember to feed slowly. Leftover food will cause nitrates and phosphates to rise. If you see food falling to the sand bed and into the rocks, you should feed slower and give the fish a chance to eat before adding a little more. Using a turkey baster allows you to target food to different fish. For example you can feed the aggressive fish on one side of the tank and then squirt a little bit on the other side for the less aggressive fish. This way all the fish get a chance to eat enough.
Maximum Length: 3"
Care Level: Easy
Reef Compatibility: Excellent
Minimum Aquarium Size: 20 gal.
Range: Indo Pacific
Water Conditions: 75-80° F; sg 1.024-1.026 (1.025 is ideal); pH 8.1-8.4 Ca 420-440 ppm, Alk 8-9.5 dKH, Mg 1260-1350, Nitrates <10ppm, Phosphates, < .10ppm
Water Chemistry: Maintaining Ammonia at 0 ppm, Nitrites at 0 ppm, and Nitrates below 10ppm will help to keep your Blue Green Chromis happy and healthy. We recommend doing a water change soon after Nitrates rise above 10 ppm. Maintaining proper calcium (420-440 ppm), alkalinity (8-9.5 dkh - run it 7-8 if you are carbon dosing) , and magnesium levels (1260-1350 ppm) will help to keep pH stable in the 8.1-8.4 range. We recommend a specific gravity of 1.024-1.026 with 1.025 being ideal for fish. Temperature should remain stable as well and should stay within a 2 degree range.
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