Sniperhank
Giant Clam Addict
For a reef, you'll want to have 20-50 times the size of the tank for flow.
A skimmer isn't necessary for a tank under 30 gallons, but I would want some type of filtration besides a HOB filter.
A skimmer isn't necessary for a tank under 30 gallons, but I would want some type of filtration besides a HOB filter.