Hi all,
I haven't maintained any of the tanks in the lab. since the middle of March, the only thing I've done is topped the water up, but it was about 1/2 way down the tanks at that point. They don't have any fish, and a limited amount of snails etc. but were heavily planted with easy plants.
They live on a windowsill facing NW and they only really get any direct sunlight in the summer evenings. One of the tanks gets a bit more daylight and has a polystyrene backing, usually I put a piece of polystyrene behind the other two tanks in ~April. I didn't do this in 2020.
Yesterday I had a look at them, and they have a lot of algae growth, mainly BBA, much of which has subsequently died, and a really thick coating of BGA, both a Nostoc type in the moss mass a the water's surface and a more traditional smear type, mainly all over the dead BBA. There are also some filamentous diatoms and what may be dead green thread algae in the backed tank.
The floating plants look pretty unhappy, and it is only the Salvinia that may be salvageable and some of the Hygrophila corymbosa & Ceratopteris has died as well. I don't know quite how hot it has been, but probably up to ~40oC , as there are large S. facing windows and the blinds have been up.
cheers Darrel
I haven't maintained any of the tanks in the lab. since the middle of March, the only thing I've done is topped the water up, but it was about 1/2 way down the tanks at that point. They don't have any fish, and a limited amount of snails etc. but were heavily planted with easy plants.
They live on a windowsill facing NW and they only really get any direct sunlight in the summer evenings. One of the tanks gets a bit more daylight and has a polystyrene backing, usually I put a piece of polystyrene behind the other two tanks in ~April. I didn't do this in 2020.
Yesterday I had a look at them, and they have a lot of algae growth, mainly BBA, much of which has subsequently died, and a really thick coating of BGA, both a Nostoc type in the moss mass a the water's surface and a more traditional smear type, mainly all over the dead BBA. There are also some filamentous diatoms and what may be dead green thread algae in the backed tank.
The floating plants look pretty unhappy, and it is only the Salvinia that may be salvageable and some of the Hygrophila corymbosa & Ceratopteris has died as well. I don't know quite how hot it has been, but probably up to ~40oC , as there are large S. facing windows and the blinds have been up.
cheers Darrel