Quote Originally Posted by LeClownBlanc View Post
Are api root tabs plus iron safe for frogs?

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I emailed SeaChem about their root tabs and they said they were perfectly safe for aquatic frogs. I would not go overboard with them. My guess as to why they are 100% safe is that the fertilizers stay buried in the substrate and never get into the water column itself. That being said I would try to not stir up the sand too much once they are in place. They do go inert after several months anyways. I've broke down and redid my tank several times with root tabs in place and nothing bad has ever happened to my clawed frogs as a result of that.

I don't recall which plants you stated you wanted to grow? Keep in mind that a lot of aquatic plants have very ineffective root systems and draw nutrients from the water column, so really you may not even need root tabs. I have not replaced mine in almost a year and my tank still gets crazy amounts of growth. I really only used them for my crypt. wendtii but I moved them to another tank and planted water sprite/vals instead.. it's a jungle in there.

So short answer would be yeah, they're safe. If you keep up on ~25% partial water changes weekly as we all should, everything will be peachy.