20 gallon high

Hi, so I'm planning to start a reef tank. Have a rough layout of how i want to set it up. Not much space, so i dont have space for a sump. The following is my plan for the layout of my tank. I was wondering if I am missing out anything, or ways that i can improve the setup.

First tank, more details to come. DIY refugium that drains into the tank from the left side: https://www.reef2reef.com/threads/homemade-refugium.1000113/ Day 1: Day 18: Day 55: Day 63: Live:

I have a 20 gallon high tank with 2 clown fish and and 1 cleaner shrimp. Can i get 2 more fish for it?

As I said in the title, I don't have a saltwater aquarium, but I am seriously thinking about it. I want a 20 gal high tank, and I can't get any tank bigger than that because I live in a retirement community and that's their limit. With that said, I do have a fundamental question. Which would be...

Grew up having fresh water tanks. Almost always had at least 1 fresh once I had my own place. Was always drawn to the salt section at pet shops. So when my wife and I found and bought our forever home I knew it was finally time to dart one. My first reef tank was born in 2016. Very basic...

Just thought I’d share this video of my new 20G High aquarium. Going to be picking up some live rock with some mushrooms and green star polyps from a fellow hobbyist. Can’t wait until it’s all aquascaped! My clown doesn’t know what to do with all that swim space!