mangolm Posted April 13, 2014 Report Share Posted April 13, 2014 On some of my plants in my newly planted out aquarium some of the existing growth is starting to develop small (1-3mm) holes with brown edges. The plants are otherwise growing well. I set up the tank a month ago. Algae isn't an issue at all. Tank is 135 Litres. Its planted very densely in Flourite Dark. I use 3mL of Flourish Excel daily and am dosing Flourish twice weekly at recommended dosage. Light is 2x 30W T8s - one "cool daylight" and one "tropical pink" plus one smaller 20w pink bulb which hardly gives off any light at all... I'll get round to replacing it eventually. There are only guppy fry in the tank, all under a month old so I'm pretty sure they're not doing the damage. I havn't seen any snails but the last owner did have snails in the tank... so if its possible for a few eggs to survive the bleaching, vinegaring (to soften the calcium deposits on the glass), and all over scraping with a paint scraper and then sitting dry for a bit I suppose there could be some babies I havn't seen yet. (Based on the last lot of snails i unwittingly brought home on a plant it wouldn't surprise me what they can survive ) Im thinking this is likely to be some kind of deficiency but I've no idea what it is. Given how densely planted the tank is should I try increasing the Flourish dose or is it some nutrient not included in the flourish? Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted April 13, 2014 Report Share Posted April 13, 2014 Usually caused by not enough potassium. Quote Link to comment Share on other sites More sharing options...
mangolm Posted April 14, 2014 Author Report Share Posted April 14, 2014 Ta Quote Link to comment Share on other sites More sharing options...
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