what plants are toxic to fish?

[zenoir]

I've heard some plants can be harmful to fish. Which ones should I avoid in my 20-gallon tank with tetras and a betta? I'm new to planted tanks and don't wanna mess up.

[tankero]

Some common toxic plants include Dieffenbachia, Philodendron, and Pothos. They contain calcium oxalate crystals, which can irritate fish. Stick to safer options like Anubias or Java Fern.

[pact]

Some common toxic plants include Dieffenbachia, Philodendron, and Pothos. They contain calcium oxalate crystals, which can irritate fish. Stick to safer options like Anubias or Java Fern.

Yep, I'd also avoid anything with milky sap, like Euphorbia. It's sketchy for fish.

[Riveria]

I've had issues with Peace Lilies in the past. They're pretty but not worth the risk. My betta got lethargic after I added one, so I cut it out quick.

[florape]

What about floating plants? Are Water Hyacinth or Duckweed safe? I've got a 10-gallon with guppies and wanna keep it chill.

[fizzlebee]

Duckweed is fine, but Water Hyacinth can be iffy if it decays. Just keep an eye on it. My guppies love hanging out under Frogbit, though.

[tawnyfish]

What about floating plants? Are Water Hyacinth or Duckweed safe? I've got a 10-gallon with guppies and wanna keep it chill.

Duckweed's safe, but it's gonna take over your tank if you're not careful. Guppies dig it, though.

[zenoir]

Thanks for the advice, everyone. I'll stick to Anubias and Java Fern for now. Appreciate the help!

[trellis]

I've heard mixed things about Amazon Swords. Some say they're safe, others say they can leach stuff. Anyone got experience with them?

[rivora4]

Amazon Swords are generally safe, but they need good root tabs. I've had 'em in my 55-gallon for years with no issues. Just don't let 'em rot.