after neglecting my tank , re joined my MAST group and got excited again. ON Boxing day , grabbed all the deals. Retro fit lights to end up with 3 x 20 watt , much better. Running Poly marine pad for a month. Buying 5 gallon r/o water and weekly changes. Red cyano on the decline. Purchased a clean up crew, snails, emerald crab , cleaner shrimp that stopped cleaning? ectra. Started I-Bionic two stage. Feeding new flake food, all fish contents "Omega ONe" two chromis and tang gained weight over the last 30 days. My 40 gallon really starting to look great with additions of cabbage leather, toadstool and funky tube anemonnie (purple tentacles with shocking green centre) , Prism skimmer on all the times again. Now my yellow tang has ich on side fins only, two days other fish fine. Tube Anemonnie went in tube three days now. When I last tested all levels were excellent. Any suggestions appreciated.