Chemiclean works really well for cyno. One dose and three days later it will be gone. Run your skimmer flat out and let it overflow. You do this because the skimmer will go nuts anyway for the next week or so. The idea is to get oxygen into your system. Some run an air stone during the time of treatment but I only ever let my skimmer cup run back into the sump. Chemiclean strips the oxygen from the water. I have done this in three of my tanks and generally once you have done it once it will not come back. Given you do not change too many things like add heaps of new sand or dodgy rocks.Thank you. Good to know that am not the only one who has experienced it and that it isn't totally out of this world.Looking forward to a more mature tank then hopefully it can go down. Will also look for the oils and see what i find.
You will as everyone does, see an Diatom bloom... browning of the sand for a while. This is normal and as I am seeing with the new sand I started my latest tank up with, it is now almost all gone. Red slime or Cyno, is different. It starts due to an excess amount of carbon in the water and it feeds on it. But it is easily treated and one treated it should stay away. Have had a few instances myself all during different tanks I have had in the past. Easily treated and then you can move on.Starting into cycling my first marine tank in the next two weeks....this is all ahead of me I suppose. I'm not going for a DSB, will this still be an issue?