This set up is only been running for about 2 weeks.But really struggling with Riccardia.Very quickly started to turn brown/black/grey and melt.I had used some liquid carbon initially and that could have been a problem.But the past 7 days have not been using it and have done numerous water changes of 50%.Aquarium is a 450L Juwel Vision,Lighting 4 x T5 54watt.CO2 via 2 diffusers,micro Seachem Trace,Iron,Flourish,Advance macro dry salts mixed in water(EI).10 x tank volume flow Filter + 2 power heads.
If anyone has any tips or ideas that would be great!