been a little slack with this of late due to work and wanting to see the effect of less waterchanges, hair algae crept in on the bolbitus and the hc looks worse for wear, so spent a good hour today on maintanence trimming out affected leaves etc filter clean. think the daily waterchanges are the way to go shrimp and plants seem happier, glad its only 12 liters 🙂 will try and post some new pics later.