i have a new planted 125gal tank (8mos old). it is filtered with an emperor 400 biowheel and a rena filstar xp3. fish load is 8 med angels, 10 zebra fish, 3 2-4 inch clown loaches, 2 flying fox algea eaters, 3 corys, 5 octinclus, 2 coolie loaches and a small bushy nose pleco. i do weekly water changes (10 to 25%) & maintain filters well. but i seem to have "dirt" sticking to my plants to the point where you cant see the green leaves (ozelo, micro, narrow leaf & amazon swords, and moneywort and wisteria). it looks like pollution or sticky gritty dirt?? i have about 250 watts of light on @12 hrs a day. can anyone advise on why this occurs and what it may be & how to enable plants to stay clean/green? i also use some phosgard in both filters. thanks for any help!
Your Pleco should be eating it, I introduced 3 bristlenoses in my tank when diatom algae came around and they cleaned it off in 2 days time. So maybe you do have really dirty plants.
i add a little fert @ every 2 wks. plants are doing fairly well. i havent tried to wipe it off but i will attempt that on the broad leafed plants. will back light down to 10 hrs. thanks.
I would think that it is probably some kind of algae. I also think that you may need to does a little more than every two weeks to give the plants a chance to out compete the algae.