are fw plants hazardous to fish?

[ethnics]

i've had a datnoid in my aquarium for almost 3 years now, i always thought fw plants add oxygen and natural filtration for reoxygenation or something. i took out some driftwood and added a few swords jus to add some color and character, 3 days later my freaking datnoid of 3 years is dead

is there another explination for this? my bichirs/clown/arowana seem to love the plants. are the plants poisoness or something? help please, imma take them out if this is the case

 

[bigspizz]

Maybe the drift wood was buffering the water?

 

[Lupin]

If plants were hazardous to the fish, they would never have been suggested for setups in the first place. I find your situation rather coincidental than the plants being the actual culprit. Questions first.
1. Where did you get the plants?
2. What was used to treat the plants for pests?
3. What are your water parameters?
4. What were the unusual symptoms observed on your fish before it died?
5. Where did you get the driftwood?
6. Was it treated? If so, with what?
7. Pics for both plants and woods to confirm the actual types.
8. Did your fish eat the plants?
9. What are your pH, KH and GH?
10. Other than the plants and woods, did you do anything else to your tank in a span of three days?

If you are sure what you have are Echinodorus sp., then those plants are not toxic.

 

[ethnics]

the tank has been setup for over 10 years. i do regular water changes. i can't give paramaters because i don't test. but i have kept things on schedule since day one. the dat/arowana/endli/ornate/clown have been together for over 3 years now. i never added any new fish to the tank since i can't because of the arowana. the driftwood is drift wood, i've owned it for 5+ years and its been longer then treated. i've had the driftwood in this specific tank for over 3 years and only removed it to make room for the arowana because of it growing over the past 3 years. he's been banging into it lately and i figured he could use the extra swimming space. i did not mean to turn this into a planted tank or anything, i bought them from my well known lfs which i've been shopping at for 12+ years. i've seen the plants there for over 3+ weeks now and they came from tanks with other fish. i seriously have NO idea what happened or how. i've done nothing different other then remove driftwood/add the plants. im positive on what they are and figured they were NOT hazardous from what i read and saw. and the fact they came from tanks with fish already and i've stopped by a few times a week checking them out and watching them grow as i've visited. this is a fluke accident or something. the datnoid was fine yesterday morning/afternoon as i fed it before i left for work at 3pm saturday. i got home 11:30 and saw a dead datnoid sitting on the sand bed. i grew this fish from a half inch for almost 3 years now. its been a life long friend to my arowana, all of a sudden its dead.

i jus wanted to make sure it wasn't the plants or else i would pull them out, the tank isn't meant for the plants, i only added them to add character n maybe help keep the aro calm n more natural like

 

[Lupin]

Hmmm...I just skimmed the driftwood bit. Okay, woods and plants are out. What did you feed the datnoid? Did you check expiration date of food? Is the food possibly contaminated?

 

[ethnics]

im taking a wild guess this is a fluke mystery death. i still can't believe it, crushed my heart

i feed it fresh market shrimp along with all my fish. the aro/bichirs get hikari cichlid red pellets daily. the dat wont touch that stuff. i guess ill be shopping for another dat cuz i've grown to love them, and got so used to having one. im gonna need another. thanks for your help

 

[badisbadis101]

You said the plants came from tanks with other fish. There is a large possibility that some fish in one the tanks had a disease of some sort, and it was transferred, via the plant, to your tank.

It also could have been a complete coincidence, or due to some other factor.