Just wanted to let people know that a guy from yonkers was giving away around 8 balls that he saved from a store...he bought them all and took them to the vet the vet said 1 of them had RI...i was thinking of getting 1 but when he called me back he said the 1 with RI was doing real bad and as we were speaking he thought he died..then he said another 1 started to show signs of RI...just wanted to let people know what was going on because he said he gave around 4 away aready...he thought they were all okay except the 1....but it seems to be that all of them might have it because they were all in the same tank...