I don't know what to do with some problems

[kitkit882233]

hi everbody :
I like the size of the fish tank120*70*50CM about 500L of water
I play 14day cylinder opening method
however I can't grow healthy algae in my fish tang
no3/po4are always high
what methods do you have
thank you

[jacky]

It is hard to say that healthy algae is not guaranteed. The ZeoVit system recommends using some fresh and high-quality live rock during the initial cycle, which really helps this process. It is also recommended to turn on the lighting for 10 hours, and it is recommended to use a natural and well-balanced spectrum, which really helps this process.

[G.Alexander]

Welcome to ZeoVit.com !

Please share some more details about your system:

https://forum.zeovit.com/forum/gener...r-tank#post138

Also a picture of your tank and your sump would be helpful.

G.Alexander