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FAQs about Balistapus Triggerfishes

Related FAQs: Balistapus 2, Undulatus Identification, Undulatus Behavior, Undulatus Compatibility, Undulatus Selection, Undulatus Systems, Undulatus Feeding, Undulatus Systems, Undulatus Disease, Undulatus Reproduction, Triggerfishes in General, Triggerfish: Identification, Selection, Selection 2, Compatibility, Behavior, Systems, Feeding, Diseases, Triggerfish Health 2, Reproduction,

Related Articles: Triggerfish, Balistapus Species, Red Sea Triggerfishes


Triggerfishes for  Marine Aquariums

Diversity, Selection & Care
New eBook on Amazon: Available here
New Print Book on Create Space: Available here

by Robert (Bob) Fenner

Xanthic undulatus. Two pix supplied by Erik of... marine livestock wholesalers in California. Erik, need your URL

- Is My Trigger OK? - UNDULATE TRIGGER HELLO. first time writing! <Greetings to you, JasonC here...> I have received tons of helpful info from your FAQ'S. Good to know someone cares. My question is I purchased an undulate trigger 5 in today from local LFS which I ordered. When I arrived to pick him up he was floating upside down in a bucket I touched him and he swam down and then floated right back up so I rushed him home to my quarantine tank. Well he seems a little better and staying right side up but still seams to be listing a little and looks bloated in the belly. Maybe just fat? What could it be? Is it possible for him to have long term damage from shipping or swim bladder problem? <It is possible...> I would greatly appreciate any suggestions or help. <I'd just give it some time. Capture and shipping are very stressful and every animal takes that stress a little differently. All in all, Triggers are pretty tough customers so as long as its new home is in good shape - clean water, places to hide, etc. - it should be ok in time.> I'VE  INCLUDED A PIC - THANKS, COREY <Cheers, J -- >

Undulated Triggerfish wants to be everyone's best friend! Hi all! I have a quick question... I have a female undulated triggerfish (about 4 inches long) in a 75 gal tank by herself. I've had her for about 3 weeks now and feel that my undulated is the exception to the rule that these fish are savage. I was wondering if there is any way, other then feeding live food, to make her live up to her name and become the terror of the sea(!) I keep hearing about. Right now the fish spends a lot of time hiding and if I feed it live food she will only eat it if the feeder basically swims into her mouth! Aside from the live food (minnows once a week) I feed krill, squid, Marine S and other pellets, and blood worms. The fish is physically 100% and so is the water quality. Any suggestions? Thank you Zack Newfoundland Canada <Time will tell, show the nature of this fish. Bob Fenner>

Don't Sweat The Aiptasia- He's "Trigger Happy"! Hello -- WWM Crew <Hey there- Scott F. with you today...Had server problems last night- I don't think that my reply got to you intact...Got me on the laptop in bed this AM (scary imagery, I know-but a great way to do WWM work!) trying again!> I have a 125 gallon tank with a Undulated Trigger and a Huma Huma both about 4.5 inches. I am aware of the potential of both Triggers particularly the Undulated.  My intentions are to get a larger tank soon. <Very good intentions, indeed! These guys will get quite large, and quite boisterous down the line. The 120 should be okay for a while, though> However the two get along fine now an occasional snap by the Undulated during feeding but they typically swim right next to each other without confrontation.  The tank is loaded with coralline encrusted live rock which provides plenty of hiding places.  I have two questions the first is how do you tell a Red Sea Undulated from the more nasty/aggressive I guess Indo Pacific?? variety/subspecies? <As far as I know-this species does not have any instinct geographic color variations. I did check a number of non-aquarium resources for you, and was unable to find any information in regard to this.> I understand Undulated Triggers are sexually dichromic --- I have a female with orange lines down to her mouth. <Yep- the sexual color variation is a fact. And I concur- you seem to have a female, as males do lose the orange lines around the snout as they mature> Reason I am asking is that I read the Red Sea can possibly become a long time tank mate with other predatory types --- but the other subspecies? Makes survival of a tankmate highly unlikely --- is this accurate? <To be quite honest with you, in my experience with this fish, as well as the experience of a few friends who currently maintain them- they are just tough customers, regardless of where they hail from. They tend to become more feisty as they mature. However, triggers are notorious for being "non-conformists" to our behavioral expectations of them in captivity! I have seen 10 inch Clown Triggers that seemed very "tame", and small Crosshatch Triggers (reputed to be more "gentle") just beat the @#$% over anything that they were placed with!> The second question is I have live rock with what appears to be anemones growing on them.  The anemones?? are small and not very colorful ---kind of a caramel brown color. Does this description sound familiar enough for you to guess if they are anemones? <Yep- all too familiar, actually! Sounds a lot to me like the famous (or infamous, depending upon how you look at them) Aiptasia anemones! They tend to come in on live rock, and proliferate with remarkable speed in tanks with higher nutrient levels or bioloads (such as...a trigger tank!). Reefers freak out when they see Aiptasia because they tend to overrun other (desirable) sessile inverts and corals. However, in a FOWLR tank like yours, I would not be too concerned, other than to see if they are indicative of sub-par water conditions (probably not, though). The anemones(?) are multiplying and the Triggers don't seem to bother them at all --- My question is can Anemones and Triggers co-exist for long or will the triggers likely damage the Anemones?? <Well, I wouldn't go out an by that tank-raised Bubble Tip Anemone just yet! My personal theorem on anemones and triggers is that the possibility of the anemone becoming a chew toy for the trigger is directly proportionate to the value and attractiveness of the anemone! Just not a great idea, IMO. I wouldn' worry about the Aiptasia, at this point, however...Sounds like your pals aren't too interested in them- yet...Aiptasia are interesting animals in their own right- very efficient at what they do best...eating. In fact, Anthony (Calfo) has even gone so far as to suggest that they could be harnessed in a special raceway as a natural biological filtration supplement! They are that good at eating!> Thanks in advance for your response <My pleasure! Thanks for stopping by! Regards, Scott F>

Trigger Tribulations Here's my question...I found a 3-4 inch Undulated trigger, that is very shy. <He won't be for long!> Every time I see him he runs and hides.  Now here's the problem, I have sea anemones (1 Condylactis). Will it eat or pick at it? <Almost certainly> I'm also thinking about picking up some clowns and a carpet anemone. <Not in the same tank, please!> Do you think this trigger will have a problem in my tank?  It's a 55gal w/ a med porcupine puffer, large Tang, Blue devil damsel, Atlantic Starfish, and a snail. The puffer has a good temperament except for small fish. Any ideas? Erik B. <Well, Eric- I hate to be the bearer of bad news, but there are a few things wrong with this picture. First, the Undulated Trigger has a well-deserved reputation for being one of the most aggressive, pugnacious fish kept in aquariums! It's not a matter of if it will be a problem  with other fish, but WHEN! Really should have a tank of his own. A LARGE tank- this guy can reach a foot in length. Your 55 is too crowded! The puffer is an awesome, adorable fish, but he gets HUGE, and needs a big tank with vigorous filtration. Just about any tang will outgrow a 55 gal. My purpose in pointing these problems out to you is not to "scold' you, but to give you an idea as to what you're getting into with a fish like this! I love your enthusiasm and interest, but please take some time to study future fish purchases before you act. A good book, like Bob's CMA, or Scott Michael's "Marine Fishes", will go a long way towards helping you make good decisions. Please consider swapping these fish with someone who has the facilities to keep them for their full life spans, and at their adult sizes, or be prepared to buy a very large tank. You will be a successful aquarist, but you need to be more aware of the long-term implications of purchasing large fishes, and the responsibility that goes with them. Keep reading, learning! You'll be fine! Scott F.>

Trigger and Sweetlips question I went to my local fish store and they have a Balistapus undulatus.  The first time I saw this beautiful trigger is on your site when it was I think the July calendar. The one at my fish store is more yellow ( I think that you recommend those are less aggressive) , <a beautiful species but all are severely aggressive. One of the most aggressive in the trade... it cannot be understated> They just received that fish yesterday.  Is it safe to take it home, or wait a couple of days?( I don't want my local fish store to sell it since it's the first time I see this fish in store) , <no rush... it is a very common fish and quite inexpensive. Wholesales at 5-15 and should retail under $40 in most cities.. under $30 in many cities. If you like this specimen, ask the store if you can put a deposit on it and pick it up a week later. Either way.. be sure to use a quarantine tank. Bring home and QT for 4 full weeks (all livestock)> Also they have a Plectorhinchus lineatus, I know that Sweetlips are not recommended but wanted to know if this one have a chance of surviving ? <not a prayer... really. I would fault any vendor that does not warn patrons of the extreme challenges of this species. Else a waste of life when sold as an impulse purchase to customers. This is a very peaceful species that needs daily live food to survive... breeding ghost shrimp and guppies that are gut-loaded before being fed to Sweetlips is quite necessary or some like substitute. Without which, they may feed on dry and frozen foods and still die in a year or two. They also get enormous (18-36"). They need a huge tank. Under no circumstance could they be kept with the undulate trigger. Best regards, Anthony> Thank you again

Undulated Trigger... trouble Bob, << JasonC here, standing in for Bob. >> Nice Site. You seem to be very well informed on Triggers. I read the FAQ and did not see any info on Undulated Triggers. Probably because most people are smart enough to stay away from the mean bastards. << I am a trigger fan myself and this is how I was initially drawn to WWM. Bob is not far away and will appreciate your kind words. You are quite correct about the undulated triggers. >> Here is my problem. I have a 4 1/2" Betta, 3 1/2" dogface puffer, 10" snowflake eel, and I just added a 4" UNDULATED trigger. I know the rule when adding a Trigger. Always make sure it is the smallest of the fish in the aquarium. I thought it was close enough. The Betta gets nipped at once in awhile and is segregated to a corner most of the time. The puffer has no fear and will not give up territory. The result is it is nipped at much more. He refuses to use is defense mechanism and allows himself to get nipped. I was hoping one "puff" might make them more compatible. The puffer is very healthy and vibrant but the marks he receives are beginning to worry me. The trigger has only been in the tank for about 2 weeks. Its a 60 gallon tank. << you're right again, that is a problem >> Is there any chance that the trigger will become less aggressive as he gets more comfortable? I will be very sad if he makes my puffer unhappy or even worse kills him. << it's a coin toss that the trigger will either get better, or get worse, and if I was a betting man, I'd take worse. Likewise, it would be unfortunate for this newcomer to spoil an otherwise peaceful tank. >> Although I want to avoid this, should I trade him in for 2 SMALL triggers (2-3 inches)? I would want a clown and UNDULATED. Am I just a glutton for punishment or would the extremely small size make them ok? << don't avoid it. No to the two small triggers of those types - two baby attack dogs. Perhaps you are a glutton for punishment. You could maybe try a small Huma trigger, they are often on the lighter side of the temperament scale. >> On a less important but curious note. I bought two blue damsels, two Dottybacks, and 2 black fish that are similar to dottys. The trigger fed on the both dottys then eventually the other two blackfish in order. The blue damsels have been left uneaten for 2 weeks. Any special defense or just dumb luck? Sorry for the length of this mail. << faster combined with dumb luck. Give the trigger time and their luck will run out. >> Thanks in advance, << you are quite welcome >> Bob

Same Trigger, Same Trouble Bob, I wrote about the Undulated trigger problem. My puffer is a PORCUPINE puffer NOT and DOGFACE PUFFER. << JasonC again... same advice applies. >> Regards, Bob << Cheers, J -- >>

Pairing undulate triggerfish Dear Bob, I read in the net about the undulate trigger with great interest because they could identify the male from the female fish. It say that the male lacks the stripe between the eyes and mouth but the female have the both the stripe. If I could have both fishes, can I keep both in the tank? Will they pair ?Is it possible? Lastly I have decided to purchase the undulate this Saturday ( tired of waiting ). Keep in touch. David. >> <Maybe... starting with the two small... and keeping them in a very large... hundreds of gallons or more.... system... Only when spawning (male making a nest, dancing/swimming about to attract females... temporarily, do these fish associate as "pairs"... Hey, they're not us! Not human that is... and you're not Noah as in the Ark... You're looking for trouble, with the probable best outcome that one of these two will hide most all the time... but... it's your system. Bob Fenner>


Triggerfishes for  Marine Aquariums

Diversity, Selection & Care
New eBook on Amazon: Available here
New Print Book on Create Space: Available here

by Robert (Bob) Fenner

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