top-up

  1. L

    Normal Amount of Top Up Water

    Hi everyone, Another newbie here who needs help from the pros ;-) I've started a new 400 litre tank with a 125 litre sump, the tank has been cycled and has a sand sifting starfish, sand dollar and 2 blue legged hermits. As for hitchhikers, I have an Asterina starfish, a tiny hermit crab who...
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