First, I thought to use a clay pot on it's side, like a picture I came across while researching. But I didn't have the right size anywhere around here.
I asked a neighbor if she had one, and she suggested using a colored glass.
I thought for a minute, and then realized I had an octagonal, cobalt blue, high ball glass I could use.
This worked with my color scheme, because I added some smaller blue, and white gravel and sand to make like a little beach.(and something softer for them to sleep on if they chose)
The colored glass still let in too much light, so I attached some shells to it to block out more.
I set it at the edge of the beach, planted an elodea densa at the entrance, and an amazon fern in the "backyard".
It was perfect, and the clowns didn't go anywhere near it.
I didn't get too frustrated because they seemed happy being out in the open. And, I liked the little house anyway, I just wished it would get used.
Yesterday, I noticed my male red velvet swordtail
inside the house. I thought he may have just gone in there for a "visit".
Later on, he was still there, and not really ready to share with his mate(who had tracked him down).
Later that evening, he was still there, looking like he was thinking,
"IT'S GOOD TO BE KING!!!!"