the purple is cyano.
you should work on nutrient export to get that down. if you starve the algae, it will go away
I know i need to get rid of the canister filter
it is a live sand bed... and what do you mean by "make up water" for toping off i am using ro water or if my salinity is on the low side I will mix some salt water to top off with if that is what you are getting at
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