Is it possible to overdose on fertilizer?

[Hally M.]

I have a freshly aquscaped tank with a bunch of new plants that I just established. I’ve been dosing a lot more Easy Green and Easy Iron than recomended and I’m noticing my fish are acting a lot more skittish and not eating their food. Would the fertilizer have anything to do with it or should I move on down to the disease column?? 
 

it’s a 20 gallon and I’ve been dosing maybe double the recommended dosing. 

[Galabar]

Have you measured the nitrate level in your tank?

 

[Supermassive]

Cant really say much without knowing your water parameters. Could be too much fertilizer could be something else.

 

You said its freshly aquascaped so are the fish new to the tank? Maybe they just aren't comfortable in their new tank yet.

[Cory]

It's possible but not likely. Unless you're over like 100ppm nitrate from easy green, I don't think it would be presenting skittish fish. I shoot for about 40ppm in easy green in my planted tanks for optimal growth.

[Matt B]

 When I read this question, my first thought was, well of course it's possible....However,  I imagine it would take  so much to do so. Spikeing your nitrates maybe.   Like Galabar asked, I would also be curious what the Nitrate levels are? 

  I have been adding 3x the recommended doseing in a 10 gal shrimp tank in an attempt to increase algae and plant growth.  The Vallisneria has exploded in growth as well as the Tiger lillys. And I'm still only at 30ppm. I have a Hillstream loach, Ramshorn snails and 30+ Cherry shrimp that are as happy as can be! 

[jwcarlson]

Since it's "freshly aquascaped"... is it cycled?

[trendyuser]

Thanks for the information.