bonz_dragon Posted August 7, 2022 Share Posted August 7, 2022 I am running a 36gl. Bow tank with an old style UGF (the big one piece white one that fills the bottom of the tank and is wavy, not flat) with a substrate of mixed 50/50 potting soil and clay kitty litter. It is then capped with small sized pea gravel. Everything was going just fine until I believe I depleted the minerals/nutrients and the liquid ferts just are not getting it. Also I don't believe I used enough depth to add fert tabs. Another question pertains to water staining/tannins. When I first started this I also added a large piece of drift wood and quickly had stained water. Recently I removed the wood, about 3 weeks ago, and have done a number of large water changes yet the staining is not relieving. So can the potting soil also cause this staining? Would adding a deeper cap help? Link to comment Share on other sites More sharing options...
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