Inducing Clowns to spawn

[phljess]

I have a pair of ocellaris clowns I have been trying to get to spawn for about a year and a half now. They have been in a 29g tank to themselves for atleast two years at this point and still have not spawned. I have had luck with my tomato clowns they spawn regulary about twice a month but just cant get the ocellaris to get down to business. What they heck is going on, I know they are bonded but they just won't do anything. Should I put some Spanish Fly in their tank or what? I have tried the following....
1. set the temp to 81 degrees
2. Saturated feedings, live, flake, you name it..
3. Put a night light by their tank
4. Light cycle at 12 hours a day changed it to 14 for awhile still did nothing.
5. Did a few large water changes
6. Moved SG to 1.020 for awhile usually keep the tank at 1.023.

I am at a loss here, any suggestions would be appreciated.

[pszemol]

No idea how to help you.
Just to let you know - I bought my 2 maroon clowns in January 2002 as tiny youngsters and the first time they spawn was about 3 weeks ago. They did lay eggs on a rock next to their bubble tip anemone. I planned to catch the fry but I missed the hatching.
Then I placed a tile covering their old nesting spot and they laid eggs for the second time Monday on the tile.

So I calculate mine needed 3 and 1/2 years to do their first attempt.
Maybe yours need some more time together ?

Do yours have their anemone or any other host in the tank or are they free swiiming in the whole tank volume?

[phljess]

They have a tile tent they are hosting in.

[Luis A M]

Nobody knows for sure what to do.I would try some LR,a BTA and enough light.

[Atticus]

First stop changing things... The main key to getting spawns is consistancy. Lighting and water parameters including SG and temp can not change. If you move any of those in a tank with a spawning pair you can throw them for a minimum of about 30 days. So, when trying to get a pair to spawn stability is even more important.

I also put a tarp infront of their tanks so nothing they can see outside changes.

[Dman]

Consistency is extremely key. And if you can't be bothered with tarps for the tanks just stop cleaning the front glass.
Dman

[janakaybravo]

Is two degrees between night and day too much temp change for spawning? How about just for your display tank?

[Dman]

Two degrees might be a little too much swing on a daily basis.
Dman