Finreo

🚨 AQUARIUM MONEY TRAP: Commercial pet stores push you to throw away and replace your filter cartridges every 3 to 4 weeks.

Based on our latest video, what actually happens to your water chemistry when you throw away a used filter cartridge? Cast your vote below and read the pinned reply for the biological science! 🐟👇

5 days ago | [YT] | 1

Finreo

🚨 AQUARIUM DILEMMA: You find the exact fish you’ve been searching for. It is active, colorful, and looks incredibly healthy—but right next to it on the gravel is a freshly dead fish of a different species.

What does the science of pathogens and shared water filtration systems say you should do? Vote below, then check the pinned comment to see why most beginners make a fatal mistake here! 👇

1 week ago | [YT] | 4

Finreo

2 weeks ago | [YT] | 7

Finreo

Let's see who knows their biological filtration!

You notice your filter media is getting heavily clogged with brown fish waste and gunk. Which of the following cleaning methods will completely DESTROY your invisible beneficial bacteria colony and trigger a toxic cycle crash? 🦠❌

3 weeks ago | [YT] | 6

Finreo

Your aquarium water looks crystal clear, the filter is running perfectly, and the fish look completely fine. But silently, an invisible killer could be building up in the water column.

If you could only test for ONE parameter today to make sure your fish aren't being slowly poisoned, which one are you checking first? 🧪👇

4 weeks ago | [YT] | 2

Finreo

Setting up a brand-new tank is the most exciting feeling in the hobby. But almost every beginner gets given the exact same bad advice at the big-box pet stores. When you first started out, how long did you wait before adding your first fish? 🎣

4 weeks ago | [YT] | 5

Finreo

🚨 NEW VIDEO DROP! 🚨

Is your aquarium water constantly cloudy? Are your nitrate levels always elevated even though you do regular water changes?

The problem is probably not your filter. It is almost always the food going in.

We just uploaded The Complete Fish Feeding Guide. We are breaking down exactly why the famous two minute rule is a lie, why tropical flakes are quietly crashing your water, and the one feeding rule experienced hobbyists use that most beginners have never heard of.

Watch the full breakdown here: youtube.com/@finreo?sub_confirmation=1

4 weeks ago (edited) | [YT] | 4

Finreo

Let's see who knows their riparium biology. If all three tanks have the exact same bioload, which plant drops the nitrate levels to 0 first?

1 month ago | [YT] | 7

Finreo

1 month ago | [YT] | 7

Finreo

Most aquarium hobbyists panic when they see an Ammonia spike, but did you know a low pH can actually turn toxic Ammonia into a completely harmless molecule? What is this non-toxic compound called?

1 month ago | [YT] | 3