For my personal experience, Sera Fe is good enough. Remember the year 2005 No.48 tank from NA? They was using Sera Fe. Dose 2-3 drops daily when the lighting is turned off.

And i had checked with year 2005 ADA No.2 winner Wayne Sham from HK. He told me he is using Brighty K + Step 2. But then he is using MH. Temp was 24-26C.

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