If you want to take a look at my build thread, I’ve got a very budget conscious 46 gallon sumpless tank as my first saltwater tank. I agree with what most of the previous replies have said as well.
One thing I would add is that for RO/DI water the RO Buddie does a great job for a tank of this size, and is much cheaper than other units.
One thing I would add is that for RO/DI water the RO Buddie does a great job for a tank of this size, and is much cheaper than other units.