Caspian_Tyger
New Member
The table in post #17 gives the hardness - 5.18 degrees Clarke. This unit is not used in fish keeping, but it is in the calculator on here, and it converts to 4.1 dH and 74 ppm. This is soft water, verging on very soft. (Ignore what water companies say for hardness, they always make it sound harder than we as fish keepers we call the numbers)
Mollies will not do well in this water, they are likely to develop a condition called the shimmies. Ideally mollies need a GH around 250 ppm or higher. They are also big fish and a 60 litre tank is a bit on the small side for them.
Ok, unfuortuantely this is the tank I have, so perhaps in the future I can relocate them to a larger tank if I get one. I also have a 25 litre tank doing nothing.... woudl it make sense to move them into there?
How can I manipulate the GH in the water?