Congratulation on your new SH. I love the ones with cirri. You do realize the fry you have are either eredi or reitus.

Believe or not, keeping any of the fry alive to 10 weeks is a tremendous accomplishment. I have had difficulty in the past with increased mortality between the 10-12 stage, as well. It is at this point mine are being switched to frozen mysid shrimp. I now keep tanks running fallow so I can move fry if I start to loose more than 1 or 2 within a 7 day period. Although all my tank parameters appear normal, there has to be something going on with the addition of the mysid shrimp. All of you are saying a spike in ammonia with the additional bio-load on the tank. I have not found that to be true. Now to purchase a microscope to monitor bacterial growth. Siphoning the bottom twice a day has also improved their survivorship. Make the transition from BBS to cyclopeeze to mysid shrimp very gradually, over several weeks. The gradual transition has improved their survival.

Hydroids can be a real problem when you are feeding live food. You can treat the tank with Panacur, however you will loose some of the youngsters and over time the hydroids seem to return. Anytime I see hydroids I break the tank down, bleach everything and re-cycle the tank. I haven't seen any hydroids in months.

Are you SH wild caught or captive bred? The majority of SH we see in lfs are wild caught (often times advertised as captive breed) and need to be treated for internal parasites.

What is your nursey tank set-up?