Can you use any kind of aquarium if you plan to use saltwater?

Answer 1

Yes you can. I started my first saltwater tank in a 29 gallon I converted from freshwater, and my second was a 55 gallon I converted. I've also used some of the small acrylic tanks (minibows and Eclipse models) as quarantine tanks.

Some of the larger tanks that have an overflow box or are predrilled through the back come in handy if you plan to have a refugium or wet/dry filter under the main tank, but these are by no means a requirement.

Answer 2

Sure, both acrylic and glass are good choices. Acrylic is stronger, insulates the water better, and can be repaired when scratched. Glass is less expensive and easier to find in stores. I would start out with at least a 30 gallon aquarium for water stability and more flexibility.

Cheers

Answer 3

you won't be able to save a tang - they want a minimum of seventy 5 gallons and six feet swimming area. a million clownfish desires 20 gallons minimum. 2 might want 30 gallons. you could save 2 fireplace fish and a freshen up team. you will possibly purely could improve the lighting fixtures in case you had to maintain corals or anemones or different photosynthetic organisms. you will want a powerhead, heater, and a source of ammonia for the fish much less cycle. I propose you get a extra physically powerful tank - they are much less confusing to maintain fish in, IMO. 30 gallons minimum, fifty 5 may well be ultimate.