Perfect, thanx for the info. The mysterys aregreat at keeping the tank clean, but subtle they are not. The tank is mostly built from native materials pulled from my yard and lake, so a lot of moss and algae. The shrimp(orange rilis and 2 bamboo) and snails are working overtime. My biggest problem is I can't get my DBTs, bacopa and grasses to root 'cause the bulldozers keep coming thru. I was worried about assasins going for the mysterys, but I guess they are too big to mess with. I'll also check into the Malaysian trumpets. Thanx again. Hope to post a pic of the tank soon, once I finally clear away all the build debris.