help with my new bursa trigger fish

[scarfishy]

hello i just bought a 2 inch bursa trigger fish he is in a tank with a os clown the clown is 2 inches they both get along but here is the question i also have 7 snials and 2 hermit crabs in this tank since i got the trigger fish in the tank he has been nipping at the live rock and trying to eat the crabs and snails and i fed him a piece of frreze fried shirmp he only ate a few pieces what other things does this fish eat as he acts as he is hungry all the time i hope he dont kill the crabs and the snails as they are good clean up crews please help me thank you ps also do i need to run carbon to my filter on my tank i have 3 aqua clear power ilters 100 gph each , with just the sponge filter and no carbon i also have live rock and live sand

 

[spanko]

He will eat all of the snails and crabs he can get. Sorry. Should have done some homework on them before you bought it.
Here is a quote on them
The bursa triggerfish, also called the White-lined triggerfish and blackbelly triggerfish comes from Indo-Pacific Ocean region. They are a hardy fish that will tolerate less than perfect conditions, however they become aggressive as they mature. These fish are pretty disease resistant. Picasso - also called Humuhumu - triggerfish come from the Indo-Pacific ocean region
Maximum Size: The bursa triggerfish should grow to a maximum size of 9.1 inches
Minimum Tank Size: The minimum tank size should be 55 gallons.
Care Level: The bursa triggerfish is a very hardy fish to maintain. On a scale of 1 –10, (10 being easy) it would rate a “9”. The tank should already be cycled before introducing this fish.
Tank Conditions: Temperature 77-79°F; Specific gravity: 1.021 – 1.024; pH: 8.0 – 8.3; Nitrates should be no more than 20 ppm, however they can tolerate rates as high as 50ppm.
Color: The bursa triggerfish – as picture shows is multi-colored. The key to identifying the Bursa Trigger, are the red and yellow lines on the head joining the eye to the pectoral fin. The fins are almost colorless sometimes with a bronze tint. Males are larger and more colorful than females.
Temperament: This is a good fish as a juvenile. It will more than likely become aggressive to other fish so it should be housed with larger fish and or fish that can handle aggression.
Picasso triggerfish become aggressiveReef Compatible: Will attack invertebrates so care should be used. This is a fish best kept in a fish only aquarium
Diet: The bursa triggerfish is a carnivore – feed foods such as brine-shrimp, chopped shrimp, clams, mussels, and squid. Feed dried and frozen fish food.
Habitat: Provide with plenty room. Good water circulation is important as well as high quality water maintenance. Filtration should include a protein skimmer and activated carbon filtration.
Lighting: Depending on the tank setup you desire. The bursa triggerfish needs no special setup
Compatibility: Triggerfish in general can be kept with boxfish and moray eels and they should not be housed with sharks, rays and small non-aggressive fish such as firefish and cardinalfish and can be a problem if housed with many others – check with your aquarium shop if you plan on buying one of these fish

 

[crashbandicoot]

Hate to break it to you bbut your crabs/snails are as good as gone. Bursas are known to be nasty and he will clean out your clean up crew and he mmight go after other fish as it gets bigger .

 

[blkmonday]

ive had a bursa and a niger trigger for a couple of years in a 72 gallon tank with lots of crabs and snails. they will ocassionally pick off a snail, but unless my crabs are reproducing like crazy, ive not had any disapear. both my triggers are pretty large and moderately aggressive. trigger fish have individual personalities that can change at any time...so its really hit or miss. its a good idea to keep them well fed, and then the crabs might not look so apettizing. i feed mine frozen cubes of plankton, squid and shrimp i also vary his diet with a ocean nutrician flake. they will eat pretty much anything once they are comfortable in the tank and constantly beg for food by splashing water out of the tank and making a "chomping" noise at the top of the tank. good luck