View Full Version : Flourish Comprehensive

04-21-2011, 05:36 PM
Is this safe for use in a tank that has inverts? In this case mystery snail...I wanted to add some nutrients for my plants and bought this and when i got home I noticed one of the trace elements is copper...(0.0001%) and I know how bad that can be for snails, but i am wondering if the level is so low that I shouldn't even worry? Thanks for the help.

04-21-2011, 06:33 PM
Good question;
I did some googling and came up with this;

"It is well known that the lethal dose 96hr-LC50(20C) for pond snails is 0.39 mg/L (or 0.39 PPM). This means that a concentration of 0.39 parts per million of copper sulfate in your tank will kill half of the snails present over a period of 96 hours if the temperature is kept constant at 20 ⁰C (68 ⁰F)."

Looks like the copper is way to low to do anything bad. I haven't actually used any plant tabs or liquid ferts in my invertebrate tank.

I hope this helps.

04-21-2011, 06:37 PM
Thanks, I actually did some googling myself and came up with the same response so i went ahead and used it. Snail should be fine :)