I have 2 young Four Line Cats in my 75. They are still probably 4 inches long so they are fine in the 75 for now. I have an open space of sand and some short fake plants on one side and a bit of a jungle on the other side with lots of DW and big fake plants. The cats were super active and all over the tank when I first got them but now they stay in the driftwood constantly. I dont even see them at feeding time. Any ideas on why they have become so reclusive? I think they're really cool when they are visible so if there's a way I could encourage them to come out it would be awesome.