I just got a 90gal tank I plan to do up as I get the money. Plan is to run a mixed reef octopus tank. I’ll be running an Eheim type 2217 filter and two more HOB aqueon 75 filters. I got 2 mover m900 heads but maybe changing that. I still need to figure out lighting solution that’s relatively cheap but will work well and I want to make the tank as smart as possible. I’m considering doing an automatic Arduino or raspberry pi app to run lights, dosages, topoffs, and heads. I’ll need to also make a latching acrylic top to prevent escapes lol. Any ideas, help, or things that you think I might need would be appreciated. Wouldn’t mind buying some used equipment too but I’m pretty tight on cash as I’m a medically retired marine and finishing school. Take a look and tell me what you think!