Start Here Articles Learn Paths Tools

Problems Inspiration About

Loading...

AquaMind shares expert knowledge about aquascaping, aquarium plants, fishkeeping, and aquatic ecosystems — connecting aquarium enthusiasts worldwide.

Explore

Home
Articles
About
Contact

Categories

Articles...

Follow

Get the latest posts via email

Your email

© 2026 AquaMind. All rights reserved.

Privacy Policy Terms of Service Cookie Policy

Cookie Preferences

Necessary

Required for the website to function. Cannot be disabled.

Analytics

Help us understand how you interact with our site to improve your experience.

Advertising

Used to show you relevant ads.

ProblemsPlant Nutrient Deficiency

plants

Plant Nutrient Deficiency

Leaves yellow, develop pinholes or new growth looks twisted and stunted.

Symptoms

Yellowing older leaves (nitrogen) or new leaves (iron)
Pinholes in older leaves (potassium)
Stunted or twisted new growth

Common Causes

Nitrate, potassium, phosphate or iron shortage
Hard water locking micronutrients
Dense plant mass outgrowing dosing

What to Check

Nitrate and phosphate test readings
GH/kH and iron dosing
Which leaves are affected (old vs new)

What Not to Do

Do not add random fertilizers without testing
Do not assume every yellow leaf is iron deficiency

Recommended

Setting Up a 40cm Aquarium for Beginners: Step by Step The Nitrogen Cycle Explained Simply Tool: Fertilizer Dosing Calculator

This guide is informational and does not replace professional veterinary advice. If fish are severely ill, consult a veterinarian.