Hello, I am new here. I have been given a 10g tank by my neighbor. It came with a plecostemus that is 9 years old. I had to buy a new tank because it was cheaper to buy a whole new setup than to replace the light hood and heater on the old tank. So now I have a 9 year old common pleco in my new tank and I am cycling it fish-in with just the pleco in there. It has been a week and my tank shows signs of becoming populated by beneficial bacteria. Here are my thoughts that I would like feedback on: 1) I am thinking the pleco is too big for this tank. Now that I have bought live plants (the old tank had no plants, just a little diver figurine) the pleco can't hardly turn around in it(10g). He/she is continually banging into the plants and uprooting them. So how do I find him/her a good home? None of my friends have tanks. He/she is almost the same length as the width of the tank. 2) I found some river rocks that I collected from mountain streams. I brought them home and boiled them, can I put them in my tank? 3) I would eventually like to have some cobra guppies (males), rasboras or maybe cherry barbs, along with a couple ghost shrimp and maybe a chinese algae eater? I REALLY want the guppies and ghost shrimp, then I am up in the air. I would like fish that would compliment the guppies, not eat the shrimp, colorful, and have a friendly disposition towards people. What is do-able in my 10g tank? I want to do this right, not fast. I have two sword plants and three plants with long bladed leaves in there right now. Thank you.