I am a newbie. My tank is 8 months old and algea is just starting to grow. The tank is 38 gallons and has about 14 fish. What kind of pleco would stay about 4-5" and is easy to take care of. I tried otos but had trouble finding them among the plants to see if they were OK. they died in about 10 days. :sad (know I need to work on not feeding my fish to much) I tried sinking tabletsbut my other fish devored them before the otos could eat.