You can buy an adapter that hooks to your faucet for just about anything, including an RO
system. They sell 'portable' RO
systems, but it's the same as a permanent system, just different connection and arrangement of the system.
There can be many causes for Cyano
. I successfully battled it in a tank with extremely high N and P by siphoning it out (along the the substrate it was attached to), scrubbing the LR
vigorously, running a diatom cartridge filter, and doing a series of large PWCs. N and P in that tank are still high by most standards, but the Cyano
is gone. Now GHA is everywhere...