I have a 100 gallon tank that I just finished setting up. Pool filter sand is the substrate along with pieces of malaysian driftwood and rock structures for hiding. I have 4 convicts, 1 oscar, 1 JD, 2 socolofi (one blue and the other snowy) previously in a 30 gallon tank together for about a month. When I first introduced the socolofi (along with others) my snowy white would pace up and down a lot, but then it stopped doing it after about 3 days. I now have them in the 100 gallon and it is pacing again. None of the other fish are pacing though. I was curious what this could relate to... maybe just the stress of the fresh transfer or...? Thanks again guys.