Originally Posted by RussellTheShihTzu
Here's the answer I received from Tristan of Aquarium Plants Factory:
1) If one Anubias rotted if may make another Anubias species rotted as well. This doesn't affect another plant. Only affect Anubias species.
2) A lot of customers don't know how to handle Anubias. Anubias can float in water in a year without a problem. But once attached to object the wrong way. It will be rotted.
3) She doesn't have to wait. Simply discard the bad anubias, change the water and they can get more Anubias. It's better to ask them float the Anubias for a while so they can adapt to the new environment before they tie the Anubias to their favorite object.
**Here is some common reason that can make Anubias species rotten.
1. Attached to driftwood/rock by using string/thread or glue the wrong way. Read more*
2. Overshadow by a larger object or put the plant into a very tight spot in the aquarium. Resolve by put Anubias in bigger space where Anubiasís rhizome can grow freely.
3. Algae - Green / Slime algae can make Anubias rotted because of poor water quality. Resolve by doing water change regularly.
4. One rotten Anubias can make another Anubias species rotted as well. Make sure to remove all rotten Anubias from your aquarium and do some water changes. This only affects Anubias species, not affect other aquatic plants species. Also, donít put Anubias near your water heater.
5. *The first reason is the most common reason. When using string/thread or glue to attached Anubias species to driftwood/rock. Make sure to do it carefully and always do research on Google / Youtube if you donít know how to do it yet. Using glue is the most common way to kill the Anubias. When using glue, make sure to use a very tiny amount (less than a drop would be good) and only apply the glue to only the root part, trim the root shorter before apply glue for best result. Never apply glue to the rhizome because it will make them rotted.
TIPS: When you first introduce the Anubias to the new aquarium. Always let them float or sink in your aquarium for at least 48 hours to one week to let them adapt to your new aquarium environment before attaching them to your favorite objects (driftwood, rock, stone, decoration, etc).
Thanks for asking him.
I'm just not sure that's what went on. The two anubia nana petite, that are hanging on, are tied to the cave and have been there for well over a year, one of them is looking iffy, those two are on the far side of the aquarium from where the other 4 were.
The one that started it all was over a year old, and I had left it floating, it's roots were long enough to touch the substrate. The next one that went was around the same age and was floated next to the first. The two that followed were brand new, I got them on June 21st and tied them to the driftwood the same way I always tie down anubia, I tie the string loosely around the rhizome, then tie it to the driftwood. I've never had a problem doing it like that since the rhizome does not get damaged, but maybe tying them right away could have caused it.
Whatever caused it I hope I never have anything like it happen again! On a happier note, I'm really liking the pogostemon octopus plant, I got it a month ago and may have to trim it soon.