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I currently have a 125 gallon tank with 225 watts 6.5k lights on it. I am possible looking to add another 65 watt light fixture to this tank. I currently have Seachem flourish and Seachem Potassium. I just setup the tank with plants from the petshop that are low to moderate lighting. I have no co2 but I do have good aereation for the tank. I would say the tank is moderatley planted. How often should I add my ferts. Yesterday I added both and then did a 50% water change to reset the tank. And do you think I should add more lighting and/or co2 to ensure my plants health. I know I have Water wysteria and some grass and a couple swords but most of the plants werent labeld or anything. Thanks a ton for any help

Chris

PS- as a substrate I am using 50% fine gravel 50% flourite. Also a recommendation on a fertilizer regime would be of great help.

I have a 125G tank with 384W of 6500k light. Primary plants are polysperma difformis, ceraptoris thalictroides, echinodorus rubin, e. bleher, saggitaria sublata, bacopa carolinia, cryptocoryne wendtii green, c. wendtii brown and c. crispatula balansae. I do not use CO2.

I dose 0.75 tspn KNO3 per day with 1 tablespoon of Excel. The crypts, swords and unmentioned lilies receive root tabs every two weeks. Water changes are 50% at least twice a week.

I would begin a water test log to determine what happens to your water on a daily or every other day basis. Since I assume your tank is cycled and stocked at a fish level that you will maintain, I would look to see the change in nitrates and possibly phosphates. If your nitrates remain near unreadable levels, 12.5 ppm or less, I would consider adding KNO3 in the form of "Green Light Stump Remover".

I add Excel as a source of carbon.

__________
"To steal ideas from one person is plagiarism; to steal from many is research."
researched from Steven Wright