I would love to be enrolled in your Seahorse Cert. course. I am new to Marine aquariums but am soaking up all the info I can. I have had freshwater tanks for years and really enjoy spending time with my fish. My nephew offered me his old 75 gallon tank (48"L x 18"W x 20"H) and I immediately thought "SALTWATER"!!!! After much thought and planning occurring over the 2 months it took to get the tank here from Texas (my mother was visiting and brought it back to Alabama with her) I settled on a seahorse tank. More studying of course and I’m 3 months into having it up and running. I have simple flourescent daylight bulb and 2 Marineland Penguin Biowheel 350B filters each for 75gl tanks so I’m over filtering I know but I like the extra clean. I have a deep sand bed in the back of my tank but I don’t like how it looks so it tapers to 2 inches in the front of the tank. I like the slope since my live rock stacks nicely on it. I have 60 lbs of live sand, the rest is about 70lbs of argonite sand. I plan on adding a layer of black so the horses colors will pop. I have about 60lbs of live rock at the moment and will be adding more. I just added a CPR in tank refugium to house my pod population for the tankmates and LOVE the setup. I will be adding some macro to it and a couple more pieces of small live rock. I have no room for a sump so I’m hesitant about adding a skimmer. I currently do a 15-20% water change EVERY Sunday and I like that schedule…seems to keep all my parameters right on the money. Currently it is stocked with a Pajama Cardinal, 2 Scooter Blennies, a fire shrimp, a chocolate chip starfish, 2 red leg hermits…multiple tiny hermits, 1 turbo snail (I had 2 but the starfish ate one last weekend), and several misc. cleanup crew snails. Thoughts on what I need before bringing in my herd? I plan on ultimately 2 pairs, maybe 3 but will have to see how the first fare.