Hi,
I am currently running an aquarium with pure rainwater, due to Keeping some soft water fish and plant species. The tank is essentially high tech with co2 added and quite high light. I am dosing tropica specialised and profito at double the recommended dose, so still a lot leaner than EI. However I’ve noticed that neither of these fertilisers contain calcium. This never was a problem previously as my rock hard tap water was full of it. However I’d assume rainwater doesn’t contain any calcium whatsoever.
Is this something I am going to need to add going forwards? Bare in mind I have species which like soft water so I wouldn’t want to raise the KH much if not at all if it’s not needed.
cheers
Conor
I am currently running an aquarium with pure rainwater, due to Keeping some soft water fish and plant species. The tank is essentially high tech with co2 added and quite high light. I am dosing tropica specialised and profito at double the recommended dose, so still a lot leaner than EI. However I’ve noticed that neither of these fertilisers contain calcium. This never was a problem previously as my rock hard tap water was full of it. However I’d assume rainwater doesn’t contain any calcium whatsoever.
Is this something I am going to need to add going forwards? Bare in mind I have species which like soft water so I wouldn’t want to raise the KH much if not at all if it’s not needed.
cheers
Conor