Hey all, I will also attach pictures to (hopefully) help with the description of the issues. First off, I'll say that the tank is giving me ammonia and nitrite readings at (or very near) 0.00 (liquid test kits, not strips). The pH is the same as usual, the temperature has not fluctuated since the introduction of the fish (78º). I recently restarted my aquarium, got it cycled and then added my fish - all tiger barbs. One thing I noticed from the start was that one of the regular tigers (I got green, albino and standard) had a very dark patch of internal organs and the area behind the side fins was darker red than the others. I thought this may be attributed to the stress of the move (from my LFS to my home) and may not be overly serious so I opted to give it a few days to monitor it. So, that's the little guy bottom middle-ish. His condition hasn't changed and he swims normally, not exhibiting any signs of stress or discomfort. This condition has been present from the inital emmersion into my tank and hasn't lessened or worsened. Any thoughts? Suggestions? Second, I think I have a bit of a swimbladder issue in a few of these guys. It doesn't seem extremely serious with the fish swimming upside down, sinking, nor floating up top - but there are a few who are angled downwards slightly while immobile. When they move, they swim upright normally like the rest of their fish friends. I did some research into this and think it's probably a case of over feeding them. The first course of action I'm going to take is to just not feed them for a day or so and see if this situation changes (even though that sucks for the other guys who will invariably get a little hungry - a seperate q-tank is not an option right now, unfortunately ). I think I got a little anxious feeding them this first week as my last tank occupants were 3-4" cichlids who ate a considerably amount more than these tiny tigers. Unless more experience tiger keepers can shed some light on this and prove to me it's something different and offer advice based on past experiences. Going to feed them peas for dinner tomorrow evening or Sunday and see how they like that.