Some plants come with a sinker ring attached, others come in a pot. The pot
plants sometimes float if there is too little gravel / rocks to keep them
pinned.

Lowering the PH, I am not the best person to give advice, Im a newbie too!
I have seen chemicals in the pet shop called PH X.X where X.X = the desired
PH value, for example PH 7.0.

Regards,

Gary.

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"Rog" wrote in message
...
Been googling but can't come up with an answer.
Ammonia ok (negligable) also nitrites same but ph is very high.
How do I lower this to the recommended 7.6?

Also how do you grow plants in the tank, do you use a small pot or such?
I did have some supplied from a shop which didn't seem to grow roots and
appeared to be happy floating on the top.
Three small healthy goldfish in a 16 gallon tank, and I would love to keep
them that way :0)
Rog (UK)