Canister filters are typically much more powerful than other filters because they can accommodate more filter media and hence, perform all these filtration best. However, canister filters are more expensive than other filters used for the same tank sizes and usually chosen for medium to large aquariums upward of 30 gallons. They are the popular choice for stocking many saltwater or freshwater fish that requires a good filtration system to do well.
Fish I would recommend looking into are
Fluval C4 Power Filter is also a power filter manufactured by Hagen Fluval. The filter is rated for aquariums from 40 to 70 gallons and certainly it can work perfectly for a 50/55/60 gallon fish tank. It isn’t a canister filter so it comes with a price cheaper than the previous Fluval 306 external filter. The filter well performs all 3 types of filtration through 5-stage filtering that provides the best environment for your fish.
Fish Aquariums - Top List of 1 to 50 Gallon Aquariums - The Spruce
The best thing about getting such a huge tank is that you literally have a plenty of choices, in which you can use the tank. So, use your 30 Gallons for keeping saltwater fishes, brackish water fishes, coral reefs or only for planting beautiful underwater vegetation.
Best Fish Tank Filters – 2017 Reviews (Top Picks) & Guide
The lightweight design is probably the most impressive benefit of these tanks. The best acrylic fish tanks are easy to move around, so you will not really end up with a hernia if you want to change the decor and move the aquarium. The lightweight construction also gives you the opportunity to invest in a larger unit. Generally, an acrylic tank is about 40% to 50% lighter than a glass tank in exactly the same size. So, if you were considering a 30 gallon fish tank and you didn’t have acrylic-made aquariums in your mind, after knowing about them, you might want to consider some , which is obviously an upgrade, while still keeping the net weight of the aquarium roughly the same. Finding the right 30 gallon aquarium heater is essential for our tanks well being. Oversized heaters can quickly fry fish while small heaters will stress fish until they get sick. Likewise unreliable heaters or those with short lifetimes can crash our tanks leaving us with only heartbreak. For this reason I've compiled a short list of the best 30 gallon aquarium heaters.