It's probably a disease called ick or ich, and tiger barbs are very susceptible to it. Fortunately, because it's so common, it's very easy to find medicine for it in your local pet store. Just follow the instructions on the back of the bottle.
In all probability they have a disease/parasite infestation called "White Spot" or "Ich" You will be able to get a medication to kill this bug at your local pet shop. Treat ASAP because white spot can be fatal.
Most Barbs - no. Tiger Barbs, Green Tiger Barbs and Ruby Barbs - a DEFINATE no! they will nip it to pieces! Other Barbs I'm not so sure about - do some research, but most Barbs - no!
No, tiger barbs are aggressive fin nippers.
Tiger barbs are tropical fish and are cold blooded.
Tiger barbs originate in parts of southeast Asia, including Borneo and Sumatra.
It depends how old they are. Tiger barbs will eat young guppy fry. Tiger barbs will attack adult guppies if the water is overcrowded. However, they won't eat adult guppies.
sounds like a tiger moth to me
Yes they are.
No it will not. However, if there are 3 or more tiger barbs, then they might get the courage to nip at its fins. And i Highly advise you not to keep tiger barbs with goldfish because tiger barbs live in warm water (about 70-85 degrees). and gold fish live in colder water. The tiger barb would ultimately die.
yes
The white spot on the back of a tiger's ears , helps tigers identify one another in the jungle.
try getting more tiger barbs to keep the other ones company as when they are in large groups of maybe six or seven they are less likely to become troublesome in the tank, if this doesn't work you will have to remove the angelfish or the barbs