It's an interesting suggestion for the coffee filter. I will run it past people at the org as well to see if they also think it could keep hydroids out.
Since I saw hydroids in the baby tank several weeks ago, I think it is likely that I still have some after seeing the sudden death of some of my biggest horses. I feel that I got past most of the hurdles with these guys. The only thing left was getting them on mysis and keeping everything else status quo.
The only thing with starting completely over is...it is starting completely over. The tank would have to cycle again, etc. If I can keep my cycled tank, it would really make things easier. I am keeping the filter section in the same tank. I have found that any drains, pumps, filters and the like ALWAYS wind up sucking up some babies! :( My algae is wrapped in bridal veil, so no amphipods are escaping.
I actually don't change the water all that often. Once a week is generally what I have been doing. I assumed that since I have been using the main tank water each time, it has kept stress to a minimum. That is, I haven't seen any stress from water changes.
It is definitely a challenge to keep these guys. I am proud of myself so far--especially keeping the reidi mix for over 5 weeks! They are REALLY difficult. Other than this new development, things have gone pretty well. Hopefully, I will be able to remedy the situation and have more success.
I have learned that raising seahorses is kind of like raising children: You can read all of the information you can get your hands on, but you are never certain of what will work with YOUR babies!
There is definitely a learning curve. The more tweaking that I do, the better things seem to go.
The moment his HEAD is in view, hit it with the LIVE ROCK!