A smaller all in one JBJ aquarium is great to start out in the saltwater hobby A couple clown fish, a medium fish and cleanup crew with nice corals would be perfect. All pumps, sponge, ceramic rings and a bad of carbon come with the cubes, everything you need. Just buy a heater and thermometer and you’re set. The lid of the aquarium comes with lights, now mostly LED, complete with blue light to simulate moonlight. Carib Sea sand. I don’t recommend crushed coral, as it contributes to higher nitrates in your aquarium, which are bad. Using water from my tank will help to start the cycle, along with a sponge that has been sitting in my sump for a month. The sponge has bacteria in it, which is needed to keep tank inhabitants alive. If you don’t have a sponge or anything with bacteria in it, you can buy bacteria in a bottle from your local reef store. I would drop a piece or two of shrimp from the local butcher in the tank. Allow to rot, which would start your tank cycling. Bacteria breaks down fish pea, urine (ammonia) and waste. It is needed to break down these bad things in your aquarium. Don’t rush putting your fish in without bacteria populating! New fish can die within a couple days from ammonia poisoning…breathing in their waste. The sponge from my tank will sit in this main display for a few weeks. Sorry for the dark video. Didn’t plan on filming this that day. There is no wrong way to add your rock. Make it look nice and make sure there is enough area around them for water to flow through. Water flow is important in a saltwater aquarium. You don’t want uneaten food or fish waste getting stuck in crevices or behind rock. Placing rock can be frustrating. There are so many different combinations possible. water will be cloudy for at least 12 hours. This is normal.