Can excess dechlorinator harm fish?

[wilde]

It's good to hear different experiences. I'll stick to the recommended dose to avoid any potential risks.

[fresha]

I've heard some dechlorinators can mess with your bio filter if you use too much. Anyone else run into that?

[flavion]

I've heard some dechlorinators can mess with your bio filter if you use too much. Anyone else run into that?

Not personally, but I've seen forum posts about it. Probably depends on the product and how much you're overdoing it.

[darkhunt]

My tank's been fine, but I'm gonna cut back on the extra dechlorinator just to play it safe. Better to be cautious, right?