How much seachems pond matrix should i put in a 2213 classic eheim canister. The seachems website sais use 1 liter of pond matrix for every 100 gallons of water. I will be dealing with about 10 gallons of water in my pyxie frog tank so that means 1/10 of a liter in my filter?? It doesnt sound right. Would it hurt if i put more media then recomended in my eheim? I guess the more media to clean water and house beneficial bacteria the better. Right?