stocking question

I have a 29 gallon tank (30×12×18) with a trio of Dwarf Chain Loaches in it. Unfortunately I cannot get more any time soon from my LFS (six months or more). The tank also has a group of Sparkling Gourami and 3 otocinclus. Ph 7.4 and hardness 110ppm. The tank has been set up for over 2 years. My...

I would like to get a Gourami of some kind for my 55 gallon acrylic tank. It is pretty stocked up, but I think I have enough room biologically. At current I have: 13 Black Ruby Barbs 12 Harlequin Rasbora 8 Yoyo Loach 2 BNP (one adult, one juvenile) 1 Bolivian Ram (a rock fell on the other of...