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christan1959

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Posts posted by christan1959

  1. Using bacteria to combat algae can be done. But it's a very slow process. Like taking Chinese medicine.

    Sometimes, you can overdose, and end up with more algae before things get better. Meanwhile, some corals may perish.

    Best method is still to manually remove and make large water change. And also black out tank for 2-3 days, and switch lights back for 30mins per day for 3 days and then increase by 30mins every 3 days until u hit 8-hour photoperiod. Go extra-light on feeding. Use  carbon and GFO. 

    During this period, u can load up on light-hungry corals. But not fish.

    Introduce a sea hare.

    For slime algae, Chemiclean is the miracle cure. It works like a charm, and it does not harm even the most sensitive coral or nitrifying bacteria.

  2. The calcium reading in my 3mth old 6footer is crazy. Using Tunze Ca reactor.

    At first, 290. Then I added Ca manually. Testing before and after every dose. Then somehow it shot up to 600 when I switched to a new batch of powder regent (previous one ran out).

    So I suspected it was the old regent.

    I let the Ca self-correct by using Red Sea Pro salt (which is super high in alk).

    Last week, things began looking "normal" - alk 10.4 and Ca 429.

    Then today, haywire again. Alk 10.0 and Ca 529.

    Anyone knows what's happening??

  3. Mystery deepens!!

    I raised calcium with powder. Thought that was that. But lo and behold, it kept rising. Now at 600!!

    Cedric, cannot be reactor tuning. Because kH was ok.

    Possibikities: 1) FM salt batch has low Ca. 2) Hanna regent gone bad (spike happened when I opened new powder regent). 3) Both of above.

    Anyone has other theories? This is perplexing because before this episode, my kH and Ca always moved in tandem - never separately.

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