I have now decided to steer away from getting Gymnogeophagus Balzanii for my tank. I have the opportunity however to get some more tapajos, albino tapajos and potentially winemilleri, steindachneri, and Sveni on an order. I had a group of 1cm tapajos fry but lost most of them a few months ago due to disease which has now been treated. I have three remaining but they obviously do better in larger groups. The remaining three are at the 2-3 cm mark, one is pushing 3.5 tbf I would say. Would I be able to introduce some more 3cm tapajos and two albino tapajos (4cm)? Thanks for any replies. Another additional question that I also have is whether I could grow out sveni, winemilleri, etc in the same tank as the tapajos (all at 3cm to begin) ?