Are aquarium plant fertilizers newt safe?

[AidanD]

I’m planning to do an aquascape with either Cynops species or T. dobrogicus. Many aquascapers recommend liquid fertilizers for the benefit of the plants, though I do not know if they are safe for amphibians. The brand I plan to buy is considered fish and invertebrate safe, but amphibians are not specified.

 

[E. Sylvanus]

I would tend to avoid fertilizers. Most of them contain iron, and as I understand it, amphibians can be sensitive to metals, so I’ve never taken the risk. The only thing I add to my tank is a small amount of CO2 (gas, not the liquid kind). Beyond that, my newt does a pretty good job of fertilizing the plants for me.

Are you looking at growing something in particular that requires fertilizer?

 

[AidanD]

Nothing that would need it per say, though I’m planning on using sand, so the more nutrition I can provide the plants, the better.

 

[E. Sylvanus]

I’ve heard that some people use organic (no pesticide/fertilizer) potting soil under the sand in their tanks to give the plants a boost. I’ve never tried it, though I am considering it for a future project. Do use caution with some plant species, though. Java ferns, for one, don’t like to be buried much if at all (they get nutrients through their leaves, and the roots are just to anchor them).

Some plants I’ve had success with without fertilizer are Java fern, cryptocoryne, anubias, and “lucky bamboo”. More recently, I have been trying out asian liverwort (sometimes called pellia) and water sprite. Both of those are doing well so far, but then again, I’ve only had them for a couple weeks.

As far as I can tell, good lighting and possibly CO2 (depending on your plant choices) seem to be more important than adding fertilizer.

 

[alexburton]

While liquid fertilizers can benefit your plants, it's wise to be cautious about their impact on amphibians like Cynops species or T. dobrogicus.

 

[AlexWentworth]

I understand your concern about using aquarium plant fertilizers in your aquascape with amphibians. Even though the thread is a few years old, the issue remains relevant. It's always wise to prioritize the safety of your aquatic companions. While the brand you mentioned is considered safe for fish and invertebrates, the lack of information about its impact on amphibians is something to consider.
If you're looking for alternative options, you might want to explore more recent resources or reach out to fellow aquascapers who have experience with amphibians. Also, have you ever thought about incorporating the concept of planting creeping thyme? It's not only appealing in gardens but could also offer an interesting twist to your aquascape.