3/18/23
Nitrates in T1 are still elevated and so is T2. T3 reads negligible.
I suspect old tank syndrome.
T1 has undergone two 15% water changes in 2 days. T2 had a 20% vacuum today. Both tanks were treated with API Aqua Essentials.
The plan is perform a 10% water change for both T1 & T2 every day until it clears.
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