Thank you! By the way…do you think that there are any substrate-dependant plants that could work in the paro tank? I thought that plant-bolstering substrates were not compatible with paro keeping…however, then I discovered the tonina style planted tank, which similarly requires acidic, very low TDS conditions :). While Tonina itself would likely be a bad paro plant (it needs very bright lights and strong circulation…it comes from the shallows of blackwater rivers in the wild…would need a large tank so that it could be brightly lit on one end and the paros could take refuge in the other when they wanted to get out of the spotlight 🙂 ), are there any other substrate loving plants that would do well if I could find a substrate that would not play havoc on the TDS/PH? (Funny enough, even some forms of a car product called safetsorb would work…it reportedly absorbs nutrients from the water well, barely affects TDS, and is infamous for ‘eating’ KH and GH in aquariums, thus causing PH crashes in normal planted tanks). I was thinking barclaya would be a good candidate, as they naturally come from blackwater environments and are not nearly as demanding as regards lighting.