Hi everyone, I currently have a 30 gallon long saltwater tank. On the 18th it will be 6 months. Knock on wood, I've had no major problems. I've had to give up some fish due to aggressiveness but happy now with the group I have. I maybe maxed out. 1 clown, 1 pj cardinal, 1 fire fish goby, 1 bar goby, 1 scissor tail goby, 1 diamond goby, 1 yellow tail damsel, 1 three strip damsel, 1 stripped blenny, 1 scooter blenny, 2 blue/green Chromis, 1 chalk bass, a Black Sea urchin, a chocolate chip starfish, 2 emerald crabs, 1 peppermint shrimp, numerous snails and finally a purple tip anenome. I'm not running it with a protein skimmer, just a filter pump.