|Underwater Galleries Cichlid Stone Bulk Pack|
They like holes, burrows, caves, ship wrecks, sculls, ruins etc. They are from the dark side. They don't like beautiful, colorful stuff like plants, flowers etc. Hence, if your planning to keep Convicts, you might want to opt in for aquarium themes like sculls, caves, ship wreck, scull island, anything like the end of life, Armageddon, dooms day etc. ;) You can use big stones, or use hollow broken barrels, sculls with holes big enough for them to go in and out, just be creative.