![]() A fish only marine tank can just have sand and rocks or it can include artificial corals, airstones and shipwrecks. Shells can be included if wanted and giant barnacle clusters along with any ornaments. To get the marine look you’ll need coral sand and saltwater suitable rocks. Other tests are available including pH and Phosphate, should you need them. And saltwater suitable test kits for ammonia, nitrite and nitrate. The main difference between fresh and saltwater is of course salt, so you’ll need a bucket of marine salt and a Refractometer to measure the salt level in the water. Put phosphate removing media in the filter to help reduce algae. Protein skimmers are extra filtration devices that both clean and aerate the water, and Ultra Violet Sterilisers can help to zap disease organisms that could make your fish sick. There are really useful pieces of equipment that will help cleanse the water in a marine tank. And compared to a reef tank, a fully stocked five foot fish-only set up will still come in far cheaper than a three-foot reef. Change the freshwater lighting for marine lighting, and you’re away!Ī fish-only marine tank can be as small as 60cm long for a pair of tank bred clownfish, but go as large as you can and a five-foot aquarium or larger will be able to hold many of the best pet marine fish including porcupine puffers, picasso triggers, snowflake moray eels, angelfish and butterflyfish. The advantage with a fish only tank is that many freshwater tanks can be set up as fish only, simply by adding salt, and there are lots of options of tanks with lights, heating and filtration already built-in. To set up a fish only marine tank you’ll need a fish tank, filter, lights, heater and saltwater. How to set up a fish-only saltwater aquarium Reef tanks also rely on a relatively low fish stocking whereas with a fish only tank you can have more fish in there and recreate the busy underwater marine scene that most people imagine. This includes some of the most stunning and sought after marine fish like Butterflyfish, large Angelfish, Triggerfish, Pufferfish and Lionfish. Many people want the dream of a reef tank full of fish and corals but the reality is that it takes a lot of time and money, and there are actually a lot fish that can’t be included because they eat corals or mobile invertebrates. And then any saltwater aquarium with fish, corals and invertebrates is termed a reef tank. If you want to exclude all the invertebrates but still include live rock, that’s called fish-only-with-live-rock, or FOWLR for short. ![]() What is meant by fish-only?Ī fish-only saltwater aquarium is a marine tank that contains tropical marine fish, but none of the invertebrates like crabs, starfish, or corals. Fish-only tanks are some of the most fun marine tanks because you don’t have to worry so much about water chemistry and you get to include all the cool fish that can’t be kept with live corals.
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