So my Fiancee has been asking since i got back into the hobby for sea horses. I'm sure many of you have had this problem. I keep telling her that we cant put them into my Display tank because they will die. :-( Well just last week she figured out a new angle. I have a 37 column that i keep Fresh water fish in. I really don't do a lot with it mainly because its self sufficient. i sometimes let it get a little over grown with algae. so last week it wasn't looking the best and she decided i should give my fish to ny nephew who just got his first aquarium and turn it into a sea horse tank. I got to say its not a bad idea. (don't tell her that). so i have been reading up on pony's. looks like i will need to keep the water at 72 to 74. i can do that. have a lot of hitching post. i can do that. I need low flow. i can do that. Plant macro algae and softies, She loves softies so that works. I am feeling like the best options are to drill it and add a sump. i can do that. ill need to get a protein skimmer. we will have a refugium in the sump. We will be getting 2 Lined Seahorses. maybe adding a couple other docile fish. I'm thinking i can complete the whole build for $500. Yay!! Thats affordable. I will use this thread to track my progress and ask for advice. please feel free to let me know what i'm doing wrong. I am new to sea horses.