silver dollars & tiger barbs "good or bad???"
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silver dollars & tiger barbs "good or bad???"

This is a discussion on silver dollars & tiger barbs "good or bad???" within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I just cycled my 100 gallon tank.All readings are good.Icycled my tank with five tiger barbs.My 8th week a added one small bristlenose and ...

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silver dollars & tiger barbs "good or bad???"
Old 06-14-2011, 07:08 PM   #1
 
silver dollars & tiger barbs "good or bad???"

I just cycled my 100 gallon tank.All readings are good.Icycled my tank with five tiger barbs.My 8th week a added one small bristlenose and a small plecos.One week later i added the small about 1and half to two inches long silver dallars.The fish store said theyed be fine but the barbs WILL NOT leave the silver dallors alone.Its only been four hours but i dont know if they will stop.Chasing I think nipping there fins.Are they getting stessed out by this or will it fade.Do I need to get rid of the tiger barbs cause I would rather keep the silver dallors.
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Old 06-14-2011, 08:11 PM   #2
 
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I have seen people mix these two fish in the past without problems. Is the chasing and nipping nonstop? Try feeding your fish some live or frozen bloodworms. Usually this will calm your fish done when they have a full stomach. How many silver dollars did you get?
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Old 06-14-2011, 08:21 PM   #3
 
Well they dont chase all the time.As a group they will chase them leave them alone but one or two will keep on them but it does seem that they give them abreak now and then.oh and I got three silver dollars.Tomorrow i will look for a additional food supply than fish flakes.Thanks
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Old 06-17-2011, 02:39 PM   #4
 
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First off, both fish are shoaling fish, meaning they live naturally in large groups. As you have the space (in a 100g tank) this is not an issue, so more fish subject to what I will say below is mandatory for the fish's well-being. Shoaling fish are stressed in groups less than 5 or 6, some need even more, and this means health issues that would otherwise not occur, and frequently increased aggression (sometimes even "peaceful" fish turn nasty solely due to the small group size). We have fish profiles here, and these species are both included. Click on the shade name to see the respective profile: Silver Dollar and Tiger Barb. Profiles in general are under the second tab from the left in the blue bar across the top.

Now to the issue with the Tigers. This species is a notorious fin nipper, and it may hound other fish to the point of death. Fish may vary from the "norm," due to many factors, but the inherent trait is still there and can be unleashed to varying degrees by again several things--including group size. If you read our profile on the Tiger, you will note it mentions a minimum of 8 in a group in a 30g tank on their own. In larger tanks, other fish are possible, with some restrictions, and the Tigers should be proportionally increased. The larger the group of Tigers the more they will be "natural" and aggression confined within the group which is normal.

Silver Dollars and any similar peaceful (sedate) fish esp with any sort of finnage should never be combined with Tigers. While some have had this work, many, many others have lost fish. I do not believe it is worth the risk of killing fish. So I recommend not mixing these two.

Even if no actual physical damage is observed, the very presence of an "aggressive" or feisty species can cause a lot of harm to other fish. Fish release chemicals, pheromones, and other fish read them. The Tigers are making it clear that they intend to rule this space, and the other fish will be under constant stress.

I would follow your last thought. Don't know how many SD's you have, but in a 100g it could be 7-8 nicely. Bear in mind they will eat live plants (most plants), so if plants are intended, this is not a fish to have. Remove the Tigers, maybe the store will exchange them for credit. Even getting a larger group now might not help; once a fish is inclined to being nippy, it is not likely to change, and the small group (5) of the Tigers may have caused this, plus the too-much-of-a-temptation SD's.

Byron.
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Old 06-18-2011, 09:25 AM   #5
 
I just returned the tigers to my fish storetwo days ago.the SD are now coming out other than hiding I guess they were scared but seem more relaxed now.I think I will get two more SD like you said it will help them feel bettter.I didnt know what shoaling meant till now.ifegurd it might have something to do with schools of fish but well i dont know but now i do.Thanks for you great info answer.I appreciate you and the forums help.
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