If you’ve personally seen a 300-gallon fish tank up close you know how tiny it makes you feel.
Saltwater Aquarium
This resource page contains a collection of in-depth articles about topics concerning saltwater and reef aquariums in general.
I also have a page specifically for saltwater fish ideas where you can check out different types of fish and some good combinations for your new tank.
Browsing through this section is recommended for both beginner and advanced aquarists.
Learn how to set up or improve your marine tank at home:
The ONLY Reef-Safe Ich Treatment in a Display Tank
It’s really discouraging to see your aquarium efforts go to waste because of a single parasitic outbreak.
6 Tested Saltwater Ich Treatments to Save Your Marine Fish
Did you recently add the perfect fish to your aquarium, just to find it covered in white dots a couple of days later?
8 Best RO DI Systems For a Reef Tank (Pristine Water)
Having the saline water in your saltwater aquarium unpolluted is so important because it supports virtually all creatures in it.
Identifying the White Spots That Appear on Fish (illustrated)
One day you pass by your aquarium and notice that your goldfish or Betta is covered in something unusual.
What Nitrate Levels Are Acceptable in a Saltwater Aquarium?
Knowing what to do when pollutants build up in your fish tank is key to maintaining healthy water quality for your aquatic pets.
Nitrate Poisoning in Aquarium Fish: Causes and Cures
If you notice that your pet goldfish is grotesquely curled up then it’s definitely time to reassess the water quality in your aquarium.
5 Best Powerheads for a Natural Flow in a Reef Tank
In a reef tank, the flow of water is essential for the corals and fish that are used to waves and currents in the oceans.
Best LED Refugium Lights to Grow Massive Chaetomorpha
As far as natural solutions for saltwater fish tanks go, there’s not much that is cooler than refugiums as a form of aquarium filtration.
The Best Coral Foods for Rapid Reef Tank Growth
Saltwater reef aquariums are the epitome of the hobby.
Best LED Aquarium Lighting for Reef Tank Corals (2023)
Looking after a reef tank at home requires dedication, profound knowledge, and having the right equipment.
Best LED Aquarium Lighting Units for Your Gallon Tank Capacity
After their emergence, LED lights have dominated the market in the fishkeeping hobby, and there’s a reason for that.
Best GFO and Carbon Media Reactors for a Stable Reef Tank
When it comes to saltwater aquarium filtration, at times you need more than the regular protein skimmer to get rid of all the pollutants.
Cloudy Aquarium Water: Why it Happens and How to Clear it?
So you’ve just set up your new fish tank and, at first, it had perfect crystal clear water.
How to get rid of green aquarium water (algae bloom)?
You’ve got your new aquarium started and it’s been going great; your fish seem happy, active and everything seems like smooth sailing from here on out.
20 Hair Algae Eaters for a SPOTLESS Aquarium
Algae come in many varieties and forms and more often than not it’s an uninvited intruder rather than a beautiful aquascape addition.
How to Lower Nitrite Levels in a Freshwater & Saltwater Aquarium on Time?
Nitrite can cause significant damage to aquatic inhabitants or even kill them.
Cause (+ Cures) for a Fish That’s Floating Upside-Down But is Still Alive?
One day you wake up to the stunning sight of your favorite goldfish acting like a balloon.
A fish floating at top of the tank but not dead yet (even actively moving around) can be confusing to witness. What does that signal?
Tips for Buying the Best 125-Gallon Aquarium Light
Having a 125-gallon fish tank is presumably the next level of fishkeeping and, boy, can it be rewarding.
Essentials When Looking After a Hammerhead Coral (+Tips)
I wish someone had told me how to handle my first hammerhead and save me all the time I spent researching it.
Mystery SOLVED – Is Distilled Water Particularly Good for Fish Tanks?
The best water for aquarium use should be clean and contain as little contaminants as possible, right?
Do They Work – API Quick Start VS Tetra SafeStart?
There’s an ongoing debate among fishkeepers about whether Tetra’s SafeStart and API’s Quick Start even work.