If you going to Buy this aquarium ..try to buy only 15 gal. tank..underwater filter so that the dirt will go only under the gravel..or If you like to see it bubly try to buy this Overhead Filter that would fits your aqaurium..and also FEED ONLY 2 to 3 times a day ..just small portion so that the water be not be contaminated and the fishes will not be poison.

For New hobbyish be guided that Goldfish 8 fishes and 1 Black Oranda Or Black Moore will bring Goodluck...