Recent content by Nef

Thanks for your help, I still have the old filter but it has been out of the water all day. Is the bacteria dead by now?

Hello All, Would appreaciate your help, my old filter sponge was collapsing so I bought a new one and placed it in the filter, next day all of my tetra's have died suddenly. I have added live bacteria to the filter just now but I forgot to change the water. Should I do a partial water change...