top of page

The Nerdy Fish Girl
Fish and Pet Care Guides
Recent Posts


The 10 Worst Tank Mates for Your Betta Fish
We’ve all seen those community tank guides that claim betta fish can live with almost anything if the tank is big enough. But here’s the reality, just because they can survive together doesn’t mean they’re thriving.


10 Mistakes That Are Feeding the Algae in Your Tank
If you’ve got algae taking over your tank, don’t freak out. It’s not usually a lack of cleaning, but these common mistakes that are actually feeding the bloom.


10 Betta Fish Myths That Absolutely Need to Go!
If you've kept bettas for any amount of time, you've heard at least one of these. These fish live in little puddles, they don't need a filter, and they're totally fine in just a small little vase. And somehow all these myths just seem to refuse to die.


Betta Fin Rot: How to Spot It, Treat It, and Stop It Coming Back.
Frayed fins with white edges usually mean fin rot. Here's what causes it, the signs to look for, and the treatments that actually work, plus how to keep it from coming back.


Buying Your First Fish Tank? 7 Things Every Beginner Needs to Know
The starter kit makes it look simple, but the box cannot teach you the biology. Tank size, cycling, tap water, evaporation, live plants, maintenance, and algae: what to know before your first fish ever goes in the water.


Why Are My GloFish Tetras Fighting? 7 Reasons and How to Fix It
GloFish tetras are black skirt tetras, and black skirt tetras run a strict pecking order. A certain amount of chasing is completely normal for them. But when one fish is getting chased down, nipped at, and run into a corner while the rest of the group takes turns, that is not just the pecking order being the pecking order.
bottom of page
