This is my other reason for not wanting the goby. I’ve not seen them really make a difference with algae. Sure, they’ll prevent things from settling, but ones there’s already algae, I don’t see them make a huge difference.
Idk, maybe I’ll add a bunch more conchs. The ones I have now scoot around all day pushing through it but they don’t really seem to much the algae.
As for trying not to vac the sand, as I mentioned that’s when I’ve had the most issues in the past. I’ve tried doing it all at once, section by section, etc. the times I’ve vacuumed the sand I’ve had spikes in no3 and po4. Not sure if this was due to them being trapped in the sand or because I destroyed whatever bacteria that was consuming them.