No Im talking about the valves in the tank that return water from the sump, they are correctly in there. Those are what clowns host if they want to, like I said I have a pair that hosted that for a month before a BTA went in the tank. Might I point out that You also thought you can superglue nems and feed fish doritos so you might want to do some simple research before posting so you dont give the OP bad info.
But yes OP you can have one clown, I always have a pair because I love watching them bond and interact with eachother! Goofy fish for sure! If you have a single clown it will turn female when it reaches sexual maturity where as two will fight and squabble to determine who is going to be female, the most aggressive fish will be female and will start growing faster than the other who will be male. Their bonding behavior is very cool to see in your own aquarium!!