Plants decaying and Snails have fallen sick

[abhaskar]

Hi

I have a semi planted aquarium with guppies and mystery snails, recently I added 2 live plants out of which one is growing n one is decaying.

I provide good lighting for 6-8hrs and a filter is run half a day not continuosly. The fishes are healthy but all snails (2 big ones and 3 small ones) stopped moving all of sudden 2 days after I planned the plants. I removed them and placed in a bucket and now they're coming back to normal. I'm not sure what caused this, and 3 days later I've observed green plant dying.
I used 5-7 drops of water conditioner (I use tap water), 3 drops of liquid carbon and 2 drops of Stress relief on the day I planted.
I don't measure any of the parameters and I don't have the test kits as well.
I've also used polished black sand on the front as a base . I do 20-30% water change every 7-10 days. The adult fishes and 8 fries are doing fine.

Kindly help!

 

[m.j.gomez]

Hello, not an expert but are u using anything w/salt or copper in it? Even in tiny amounts they will have an effect on both plant & snails! Hope this helps!

 

[abhaskar]

Oh yes I read about copper but I am not sure if any of the things I have used had copper in it. I have not used salt in any form as per my knowledge. Would frequent water changes might help for a while?

 

[King Fisher]

Up your water changes to 50% weekly. Cut off the dead and decaying plant parts. I'd also use a liquid fertilizer.

 

[abhaskar]

Sure, will start doing it. Any suggestion on which liquid fertilizer? And would any of the products I'm using actually affect snails or fishes?

 

[King Fisher]

If you got snails look at getting ThriveS