Algae is controlled by maintenance!

CHSUB · 2026-10-26T18:27:21-0400

Everyday we see several posts about algae problems. Often times the advice centers around nutrients being too high or too low based on inaccurate, low resolution hobby test kits. If there is algae, regardless of the kind including dinoflagellates, there are plenty of nutrients. A clean, well maintained aquarium will never have algae problems including dinoflagellate. If you have algae problems your aquarium is dirty and you are not doing enough maintenance. It is that simple.
My saltwater aquarium never has algae problems because I maintain it properly. The same can not be said for my freshwater aquarium. I’ve gotten lazy and have not touched it in over 3 months. The tank is over feed and doesn’t have significant plant growth. Today I decided it needed some maintenance: a WC and manual removal. This was not a “rip cleaning” that some suggest, but I did remove and clean the decor. Does not matter if it is saltwater or freshwater, aquariums are maintained the same way. Keeping them clean with maintenance is all that is required.
Here is my before and after today, only took about an hour….

Saltyreef · 2026-10-26T19:18:38-0400

CHSUB said:
Everyday we see several posts about algae problems. Often times the advice centers around nutrients being too high or too low based on inaccurate, low resolution hobby test kits. If there is algae, regardless of the kind including dinoflagellates, there are plenty of nutrients. A clean, well maintained aquarium will never have algae problems including dinoflagellate. If you have algae problems your aquarium is dirty and you are not doing enough maintenance. It is that simple.
My saltwater aquarium never has algae problems because I maintain it properly. The same can not be said for my freshwater aquarium. I’ve gotten lazy and have not touched it in over 3 months. The tank is over feed and doesn’t have significant plant growth. Today I decided it needed some maintenance: a WC and manual removal. This was not a “rip cleaning” that some suggest, but I did remove and clean the decor. Does not matter if it is saltwater or freshwater, aquariums are maintained the same way. Keeping them clean with maintenance is all that is required.
Here is my before and after today, only took about an hour….

Agreed.

Ive been seeing more dry rock started tanks these days with algae issues. This is a unique situation of nutrient levels associated with algae growth.
when the tank is covered in GHA with a dry rock started tank ive experienced low phosphate levels but as soon as the GHA is beat and phosphate is allowed to be present in the water column or after equalibrium is made with rock and substrate, its sky high and needs to be brought into spec.

sixty_reefer · 2026-10-26T20:15:59-0400

I’d argue that algae problems are not always just a nutrient issue, nutrient management is one aspect of husbandry but grazing or predation can also influence algae abundance. In addition, microbial and other microscopic organisms may affect algae through competition, consumption, or decomposition, even though they are not visible to the naked eye. With patience and limited intervention, some of these organisms may increase naturally and contribute to improved algae control, although their effects can vary by system.