I have 19 dwarf horses for now
I have 11 babies that are 2 weeks 5 days old. I have 3 babies that are 7 weeks 4 days old. I have that was born in the tank and is now 13 weeks 5 days old. So that leaves me with the 4 adults that could be any age.
I have only had one fry death in the last 3 months and that is remarkable in the world of dwarf seahorses.
There are a few things I have figured out. Live rock is needed because it aids in the filtration and impeccable tank parameters is necessary. You can treat the rock and tank with the horses in the tank. I use panacur. This is important. It comes from Dr. Fosters with 3 pouches. The powder will last a super long time. I take such as mall pinch that it's no more than 20 tiny little granules at the most. I just drop it in the tank 2-3 days per week for a couple weeks. Then after that I drop it in maybe once per week. This allows me to use all the same equipment in the water changes etc and not keep giving myself another hydroid outbreak.
I have been using just one of these packets for 2 months. I have not had any snail deaths because I've used such a small amount. My hydroids are a thing of the past.
Amphipods are not the problem some people think they are. I have had lots of them in my tank and I've never seen them bother even the tiniest of fry. I've seen them crawl around them, touch them as they move by. I'm sure they could, but they are really not interested. Live prey isn't exactly their style. Whenever I can I suction them up with a turkey baster and put them in my big tanks for my other seahorses or fish.
I also use sea lab # 28. It's a buffer that comes in cubes. They dissolve over time and keep the water perfect for the horses. I do small water changes of about 1/2 gallon per day. I use one drop of methelyne blue in the tank change water 2-3 days per week to help prevent bacteria or fungal infections.
I have a 5 stage filter bought from airwaterice.com I change my filters 3 times per year and don't worry about testing my tanks anymore. I run 5 gallons of water daily that gets divided between 8 tanks. I never have a water quality problem.
My dwarf seahorses are kept at roughly 72-74 degrees. I take the lights off the tank and lay them on the side part of the day to keep the water from getting too hot and I keep my thermostat on 72 in the summer and 68 in the winter. I have a 5 gallon hexagon tank that has a filter pad and a bio-wheel. I covered the in take with a blue cannister filter cover that I sewed on with plastic thread. I rinse this every week.
I have 25 gallons worth of copepod tanks, 2 10's and 1 5. I add copepods to the tank daily and my dwarf horses do hunt for the pods. But you have to realize when they are hanging upside down staring at a rock they are hunting even though it looks like they are not doing anything.
I feed live baby brine and enrich them from day 2-4.
I am about to make space in my house to begin cycling 2 new tanks. I have 2 males that are already showing pouches from the batch of horses that are 7 weeks 5 days old. One of them has been filling and flushing his pouch and I expect him to become a father soon. The other guy has been flirting a lot but not yet flushing and filling his pouch. Their daddy has had only 3 bathes of fry. He was very small when I got him and is now big and healthy. He's only lost one of 16 fry so far.
My horses are wild-caught. I have not treated them for parasites as so many recommend. I got them from CCritters. I bought them through Ebay.
Goodluck
