I have the EM 10 MK 2 , its a great little camera , but the AF is lacking . Pairing it with a nice fast lens might help , but you should looks else where if you want fast accurate AF . I suggest the Sony A 6000 . Try to find a body only option if possible , as I heard the kit lens is rubbish . But there are plenty of reviews online praising its AF , so I think that ' s where you should look at . <| sep |> Portland , Oregon Keep Portland weird is their motto . <| sep |> I think they would have gotten a different result if they had used older rats instead of young rats . Also , the dose seems very high . <| sep |> You don ' t have to add fertilizers . Fish waste and decomposing food are supposed to be all that is needed . That said , using things like root tabs and fertilizer definitely won ' t hurt . I actually sprinkled some osmocote the kind they use for DIY root tabs on the bottom under the dirt in my latest dirted tank .