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Fish dropping like flies - water tests all normal. AquaSoil issue?

Discussion in 'Tropical Fish Emergencies' started by flix_cw, Apr 20, 2017.

  1. flix_cw

    flix_cw Member

    Jan 4, 2010
    Likes Received:
    London, UK
    Any help please:

    I recently moved house (and my fish) 4 days ago, and in the last 12hours I've lost 4 fish (glowlight tetras and harlequin rasbora) and my dwarf gourami is looking vv sick.

    I had a very established 7yr old heavily planted 56L tank prior to the move, i now have a 130L tank. The canister filter wasn't switched off for more than a few hours. I haven't moved far so the mains water is the same.

    I've used an API Master Test Kit and the results are as follows:
    Ammonia - 0
    Nitrite - 0
    Nitrate - 5ppm
    pH - 7.6

    The one thing that is different is that i bought AquaSoil from Maidenhead Aquatics (https://www.fishkeeper.co.uk/product/aquasoil) and have that as a base layer substrate, capped with gravel from the old tank. Might there be (a) compound(s) that it's leeching that the test kit doesn't pick up? Has anyone else come across this issue? I'm doing 50% water changes 2x daily.

    Any thoughts much appreciated.
  2. DutchMuch

    DutchMuch Fishaholic

    Apr 17, 2017
    Likes Received:
    warning i dont sugarcoat my comments May seem Rude
    Old tank syndrome...?
    but if you just bought some new aquasoil and added it to an established tank it will leach ammonia.

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