My First Fish Tank Blog
I’ve written a lot of saltwater aquarium articles over the years. If you know what you’re looking for, use the topics below. If you’re brand-new and do not know where to begin, the Beginner Guides will give you a much simpler path.
You can browse everything here, newest updates first. If the list feels like too much, use one of the topic buttons to narrow it down.
A water change is not complicated once you have a routine. This guide walks you through the whole job, including preparation, detritus removal, refilling, and restarting the equipment.
Nuisance algae is frustrating, but it is also a clue. Identify what is growing first, then work on the light, nutrients, flow, source water, or maintenance issue helping it spread.
Build a cleanup crew around the job your aquarium actually needs—not a gallon formula.
Bringing home a fish is the easy part. This guide covers acclimation, quarantine, observation, water quality, and the safest way to move that fish into the display.
There is no useful fish-per-gallon rule for saltwater tanks. Start with adult size, behavior, territory, filtration, and the rest of your stocking plan.
Choose a beginner saltwater fish by adult size, tank footprint, diet, territory, social needs, reef compatibility, and your complete stocking plan.
A bubble-tip anemone should be one of the last animals you add, not the first. Use these checks to decide whether the tank is actually ready.
One clownfish or a pair? This guide helps you choose healthy fish, plan quarantine, handle arrival, and know when the tank is ready for them.
Add a cleanup crew because your tank has a job for it—not because a chart says you need a certain number of snails and crabs.
Cycling is not about waiting a magic number of days. Learn what the tank is doing, what to test, and how to know when it is ready for the next step.
Now it is time to add water, set salinity and temperature, start the equipment, and make sure the tank is running the way it should.
Before you add water, choose the location, inspect the kit, learn what each piece of equipment does, and build an aquascape you can actually maintain.
Build a saltwater aquarium maintenance routine around daily observation, regular water changes, cleaning, testing, and equipment care.
Understand how refugiums, plumbing, overflows, and sumps work together—and when a beginner tank actually needs them.
Compare mechanical, biological, and chemical filtration along with reactors, algae scrubbers, and UV sterilizers.
Choose lighting, heating, and water movement that match your tank, livestock plans, room temperature, and safety needs.
Understand the nitrogen cycle, core water parameters, RODI filtration, salt mixes, and when additives may or may not help.
Here we go! The following build is built around a 91 gallon Red Sea Tank.
Key Stats: Size: 40 Gallons Aquarium Dimensions: 35.4″ L x 19.7″ W x 13″ H Stand Dimensions: 35.43″ x 19.7″ x 35.75″ Aquarium I love this tank bundle… So much…
This compilation is tailored for individuals seeking a nano-tank (under 20 gallons) and are ready to invest a bit more for premium equipment.
This Ultimate Saltwater Aquarium guide was primarily designed to provide inspiration and a glimpse into some of the most extravagant equipment and setups available in our hobby.
Hey there! Welcome to the $1600 Saltwater Aquarium High Tech Build guide!
Welcome to our $340 Saltwater Aquarium Budget Build guide! Our aim is to help you create a stunning saltwater aquarium without breaking the bank.
Starting a saltwater aquarium on a smaller budget is possible when you prioritize the equipment that protects water quality and avoid buying everything at once.
We are jumping price points quite a bit here, but trust me, if you can afford it, the following Red Sea system is worth it.
Welcome to the $2750 Saltwater Aquarium High Tech Build guide! We’re about to take your saltwater aquarium to a whole new level of beauty and technology.
By far the easiest and best value, this HelloReef Kit, as you will see, is a project I’m involved with.
Compare live and dry rock, plan a stable aquascape, and choose sand that fits the saltwater aquarium you are building.
Learn what makes a beginner-friendly coral and how to choose cleanup crew animals for the jobs your aquarium actually has.
For many saltwater enthusiasts, the allure of the hobby lies particularly in the realm of corals.
Keeping the right saltwater parameters is key to a thriving reef—learn the ideal ranges for salinity, temperature, pH, and more!
You can and will beat dinoflagellates. Our comprehensive guide will walk you step-by-step through the entire process.
Important: I am an experienced hobbyist, not a veterinarian. Saltwater fish diseases can look alike, and the wrong medication can delay effective care or injure fish.
Important: I am an experienced hobbyist, not a veterinarian. Fish diseases can look alike, and the wrong medication can delay effective care or injure fish.
Yes, you can start a saltwater aquarium for under $500—but I would treat that as a hard ceiling for a simple, stable first system, not a reason to buy the…
This week’s article is an overview of saltwater aquariums, what they are and the different styles out there for you to try!
By this week you may be ready to start buying some of your gear! We will cover some quick gear buying tips for you to consider.
By now you might be starting up your saltwater aquarium so here we cover some mistakes many beginners make so that you don’t make them!
Rocks for saltwater aquariums can get quite complicated! We are here to cover anything and everything about reef rocks!
Aquascaping your saltwater aquarium is a big step, as it will define how your aquarium looks for the rest of its life!
This Las Vegas aquariums guide began as a one-day Strip challenge: I walked for more than 16 hours, covered 19.3 miles, visited 30 hotels, and found 10 aquariums, tanks, and ponds.
The best live sand for a reef tank depends on your flow, livestock, and preferred grain size.
Affiliate disclosure: This guide contains affiliate links. If you buy through them, I may earn a commission at no extra cost to you.
Affiliate disclosure: This guide contains affiliate links. If you buy through them, I may earn a commission at no extra cost to you.
Affiliate disclosure: This guide contains affiliate links. If you buy through them, I may earn a commission at no extra cost to you.
A good test kit answers a specific question. During a fishless cycle, ammonia and nitrite tell you whether the biofilter is ready; nitrate helps show what the cycle produced.
“Live rock” describes rock that carries an established community of bacteria and other organisms.
A protein skimmer removes dissolved organic material by concentrating it in foam and carrying that foam into a collection cup.
The best filter media is the one that solves a specific, measured problem.
The best reef-safe epoxy and glue depends on the job: two-part putty supports and fills gaps, while thick cyanoacrylate gel bonds coral plugs or dry coral bases to rock.
The best coral foods are the ones that match the corals you actually keep—and many beginner reef tanks do not need extra food at all.
The best saltwater fish food is the one that matches each fish’s natural diet, mouth size, and feeding behavior.
Media reactors are optional tools—not a requirement for every beginner reef tank.
Fish baths, coral dips, and water conditioners solve different problems, so the first rule is to use each product only for the animals and purpose stated on its label.
For a saltwater aquarium, the water you start with matters as much as the salt you mix into it.
The best aquarium algae scraper setup is usually a pair: a magnetic cleaner for frequent film algae and a handheld scraper for corners, the sand line, and other places a magnet cannot reach.
The best refugium light is the one that matches your macroalgae chamber, mounting clearance, and nutrient-export goal.
The best aquarium controllers for beginners are the ones that solve a specific problem without adding needless complexity.
Salinity is one of the measurements I want every beginner to verify instead of estimate.
After years of running saltwater aquariums—and breaking more than one glass heater—I have learned that the “best” heater is the one you can size, place, and monitor safely in your actual system.
This week’s article is an overview of saltwater aquariums, what they are and the different styles out there for you to try!
This week’s article covers some common beginner questions you might already be asking yourself, or at least should be!
Learn how to set up a sleek, 20-gallon saltwater aquarium for around $800 with easy-to-maintain gear—perfect for beginners.
Get started with saltwater aquariums and reef tanks with these essential tips for beginners.
Are saltwater aquariums good for beginners? Absolutely! Start with a manageable 40-gallon tank to learn the basics and enjoy educational benefits and soothing water sounds.
Discover the 22 things I wish I knew before setting up a saltwater aquarium and avoid common beginner mistakes.
Discover the top six beginner saltwater aquariums, perfect for new hobbyists!
Create a stunning saltwater aquarium on a budget with our guide to three affordable builds!
We are bringing you two build guides to help you setup your first saltwater aquarium, along with some cost cutting tips and tricks!
Choosing a first saltwater aquarium is easier when you stop looking for one perfect tank and start with the kind of experience you want.
Now that you are ready to get your saltwater aquarium wet, here is how you add the sand, the saltwater, and setup your filtration!
How do you make saltwater? It can seem intimidating, but its easy and here we will teach you how to make it!
After seven failed attempts, I finally discovered the secret to keeping bubble tip anemones thriving: stability.
Setting up your first saltwater aquarium can be an exciting yet daunting task.
A lot has changed in the five years since we published this post, so we thought it was time for an update.
Once your saltwater aquarium is filled with water, you have to make sure your aquarium is cycled, so here we show you how to do it!
In our endeavor to explore various ammonia test kits for aquariums, we considered the possibility of testing more than four kits.
When it comes to return pumps, you’ll find two main categories: AC and DC pumps.
The Berlin Method has long been a traditional approach to maintaining a saltwater aquarium, relying on a sump, protein skimmer, and ample live rock for filtration.
So you are becoming obsessed with this hobby huh? Don’t worry, your secret’s safe with me!
This week’s article is an overview of saltwater aquariums, what they are and the different styles out there for you to try!
This week’s article is an overview of saltwater aquariums, what they are and the different styles out there for you to try!
Sometimes you create your dream build, but some pieces just don’t seem to ever be in stock.
You finally have all your saltwater aquarium gear, but before you go set it all up, here are some quick things to check!
Sand in a saltwater aquarium is more complicated and important than you think!
Once you understand the nitrogen cycle, you’ll have a deeper understanding of aquarium filtration and be able to tackle it without issue!
A basic overview of saltwater aquarium filtration, we will go in depth in future articles!
Alrighty, let’s jump right in! When you are just starting out in this hobby, the various styles, shapes, and brand names of aquariums doesn’t mean a whole lot to you.
Before you buy gear, compare the kind of tank you want, the space you have, your budget, and how much ongoing care you can handle.
If you are still deciding which tank fits your life, use Start Here. If you already know what you want and need the most useful beginner articles, go to the Beginner Guides next.
Take a Reef Break
Tap, click, or press Space to guide Swimmy Fish through the reef.