Help - Newbie

samax

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I’m new to the hobby and have had a 75L nano cube running for around 3 months. The system was fishless-cycled by dosing ammonia and it passed the 24-hour test with no issues. Since then I’ve stocked 4 fish and a clean-up crew, and added a few zoas plus a torch. I’ve been dealing with diatoms for a couple of months (manageable), but over the last couple of weeks what looks like early dinos has started spreading and is getting worse. I’ve gone down the research rabbit hole and keep landing back on nutrients, but no matter what I do my ammonia, nitrite, nitrate, and phosphate all read zero on Red Sea kits. I even double-checked with an API kit and got the same result.

My local marine shop suggested I turn the skimmer and ReefMat off to let nutrients rise, so I’ve had both off for the last week, but the tests are still reading straight zeros. I’m feeding brine shrimp with spirulina once a day (a decent sized portion) and still can’t get anything to show. I was doing 10L weekly water changes, but this week I skipped it to see if nutrients would climb, and they haven’t, meanwhile the dinos are spreading more. I’d really appreciate any suggestions on what to change next to get nutrients into a measurable range and get ahead of the dinos.
 

Subsea

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I see this is your first post. Welcome to r2r. Consider starting a tank journal in members tank forum.

You have not discribe your biofiltration. Perhaps you have too much nitrification media.

Why don’t you feed more?

I have mature systems that I dose pure ammonia. You should be dosing phosphate & nitrate and or feeding more.
 
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samax

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Thanks for the welcome. I will take a look at the journal.

I am currently running:
  • Reefmat (currently off).
  • Skimmer (currently off).
  • Reef-spec carbon media.
  • Caribsea liferock rocks.
  • Live sand.
  • Cycled with dr Tim’s bacteria.
I have tired feeding more, still no joy and didn’t know if jumping straight to dosing was the right path.
 

Subsea

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Not sure what a decent size portion means to you. However, if you are showing zero nutrients after four months, you are not feeding MUCH.

@samax
Not sure what you consider to be an emergency. Please supply a full tank shot in white light.
 
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Mr. Mojo Rising

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IMO the tank is overstocked with 4 fish, unless you are not feeding the fish, I find it hard to believe that the tank has zero nutrients, I expect your nutrients are high. If you have algae, then the nutrients can't be zero, algae needs nutrients to survive. But a tank picture will help.
 

Gumbies R Us

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I would feed more and feed food that is higher in nitrates. Do you have photos of your tank?
 
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samax

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I’m currently feeding 1/4 cube of the attached food once a day, so I should be feeding more or try a different food? Also attached are some tank pictures. But i haven’t seen ammonia, nitrites, nitrates and phosphate’s above 0 since adding fish after the initial cycle.
IMG_7414.jpeg
IMG_7415.jpeg
IMG_7416.jpeg
IMG_7418.jpeg
IMG_7420.jpeg
IMG_7423.jpeg
 

Gumbies R Us

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Try the salifert tests out, and try feeding mysis shrimp. You have algae, meaning you have to have some detectable nitrates
 

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