Hey all, Haven't posted here in ages! But my 17gal is still very well established and all its inhabitants are thriving with no intervention except for a tri weekly water change and gravel vac. So i popped down to the local fish store to have a look for a tank as a present for my girlfriend for xmas - she's obsessed with my tank and is desperate to start one - and they had a range of new pumps from china (called sensen or sunsun). They had a little HOB powerfilter for really cheap, and seeing as a friend had given me a 5gal empty tank with a heater I thought why not! It was going to be a quarantine tank, but now I want to put something in it! So I have asked this question before - a long time ago. But I wanted to know if its possible for 2 bumblee goby's to get along in this? I've got some really great stuff to put in there, obviously i dont want to crowd it, but I wanted to know if I make it an interesting enough environment with enough nooks and crannies (i know bb gobies can get a bit territorial) - do you guys think it could work? I did some marine sampling work, involved sorting through 120m deep marine cores and the gravel i got from that is awesome! Shiny smooth tiny little oval blue/gray pellets, so really looking forward to getting this tank going! Thanks in advance, sorry for the long post!