Welcome to the reef! Everyone here wants to help. We’re a great group of folks. A few things....
Not everyone agrees on every method but there are some things that never change...
1. Your tank will cycle. Some do it with fish, some without. Back in the day, we dropped a damsel into a new tank to get it going. Now, since we have bacteria in a bottle, it’s not necessary to add fish.
2. You know your tank has cycled when ammonia and nitrite are 0 and nitrates are around 5-10 (ideally). If your nitrates stay higher than that, you will have trouble with....
3. The new tank uglies. Every tank, once cycled, will have Cyanobacteria, diatoms, and/or green hair algae. Or all three. How much you feed and how many critters you have (and subsequently, how high your nitrates are) will determine how bad it is. Everyone goes through it. When you get there, we’ll be here.
4. Top off systems are not necessary, but if you get one, you’ll wonder how you ever lived without it. If you don’t have a RO/DI unit you can probably buy water from the LFS. I had a tank for two years with no RO unit. I bought my water.
5. Overstocking a new tank is one of the things that can greatly contribute to a lot of different problems down the road. Aim for 1” of full grown fish for each 3-5 gallons of water. Your two clowns plus the hawk, once full grown, will account for about 9 inches of fish (3” each). With just those, you’re at the three gallon limit. If you add more, you’ll need to do bigger and more frequent water changes. You may also find at some point that you want a skimmer. It will really help with filtration and waste removal.
6. Quarantine tanks are great but not necessary to keep all the time. You can pick up 5 gallon tanks very cheaply if you need it. If your fish get sick, we’ll help you.
6. As tempting as it may be, try to resist the urge to buy anemones or corals for at least nine months. Both of those require well established systems and advanced lighting.
7. Advanced lighting is expensive.
Lordy be, there is so much! Go to Bulk Reef Supply website and check out their 52 weeks of reefing video series. It great!
Btw.... condy anemones are not natural hosts for any clown fish species I know of. If you hope to see your clowns dive into an anemone, you’ll want a different anemone. Condy anemones are very aggressive. I had a very large one in a 29 gallon tank that ate his 3” damsel companion. I sold the anemone after that.
Please ask all the questions you want.