Well-known as prizes at carnivals and point out fairs, goldfish are noted for their orange-gold coloration, but they really come in several hues and designs. Dwell-bearing species of fish like guppies and swordtails are infamous for breeding inside the Group tank. I've had sand in FW, It can be frustrating. https://erickvweoq.theisblog.com/37702234/top-aquarium-setup-tips-secrets