12-01-2010, 01:31 PM
| || |
Java Fern is a slow growing plant and thus susceptible to algae, particularly brush algae. Anubias, another tough leaf slow growing plant is the same. Of course, any plant will be host to algae if conditions are right as mentioned previously, but even in "good" setups these plants can attract some brush algae.
When you come to exchange the substrate, I would get a 2 gallon pail (you should have a couple of these for fish use only, a good investment) and drain the tank water into it and net the fish in. Depending upon the room temp, you may or may not need to have it heated; in a warmish room it will be OK. The drain the tank and remove the coral, wash and replace with your sand, and fill and condition. If the filter is not touched and remains wet, bacteria will still be alive. If you have any decor, like wood, rock, etc., in the existing tank, keep it wet (put it in the bucket with the fish) and bacteria on it will remain. When the tank is ready, drain some of the water out of the bucket with the fish, add water from the tank; do this a couple times. Then net the fish into the tank. I have never lost a fish all the times I have done this.