Bad Cyanobacteria and diatoms! Help! Also a very skinny clown goby

[jayd]

My nitrates are high but ammonia, nitrite and phosphates are at 0

I do frequent water changes but my nitrate isn't lowering! I've also limited light and reduced feeding. Can anyone tell me what else I can do that will definitely work?

Also- my yellow clown goby looks very skinny-(I feed him flakes). What else should I try?


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[Gregcoyote]

Mysis shrimp is a great place to start. My goby loves it.


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[Anovack]

I had bad cyano and recently just got a new patch after 6 months. I started feeding too much I believe. How I get rid of it is I use red slime and a dose below the recommended tank size, cut lights down a hr, feed every 3rd day. Also if you use red slime, ramp up your skimmer to take some out.

As for clown goby, Im not sure why they say beginner fish. I had one and lost it because it stopped eating. I tried mysis and chopped it up for its small mouth but that only lasted so long before it got super lean and died.