a quick fix for bad care of clones that get drowned by collective members is hydrogen peroxide. i cant remember the ratio off the top of my head but it gives a quick boost of oxygen to the roots an can sometimes bring them back. I think its like 3-5 mill per gallon. better luck next time
In aquatics (shipping, import/export) we use 5mls/gal for shipping stressed animals. This includes the most sensitive invertebrates, corals, anemones and the like.
You know I really wanted to give it some of that but I could not find a source identifying that as a good ideal. I also looked into H2O2 but never went out to buy it. Thanks again, prime info and knowledge to utilize.