Brown dust like algea

[thincat]

Refresh my memory...How long are you going to be away?

[bumblebee1976]

2 weeks. I am hoping this heatwave will have passed by then so at least there should be a more stable temperature in the tank, even if other params are not so stable!!!

[thincat]

The most important issue will be evaporation. Make sure that he understands that evaproated water is not saltwater and only RO/DI water is used to bring the tank water level back up so that your SG won't go out of wack. Take a piece of tape and mark the normal tank level and tell him to fill it back up to this level with RO/DI water only. Second is feeding. Have him feed as little as possible. Better to under feed then to overfeed. If your skimmer is up and running, he will have to empty the cup unless it has a drain tube on it.(tell him to be careful here....
***you should make him a list of things that he should look for.
IE***are the pumps running?
check the level of the tank water
check level of skimmate in the skimmer cup.
Etc...

[Tank2379]

Does it look like this yet?

If you are Mike is right Diatoms along with thincat. All will go away over time. Especially if you are using an RO/DI unit. Works wonders and a Great investment. Good Luck and Keep up the good Work...