Great, you're using Foliage Pro. I'd go with a heavier dose, once or twice a week. With my Meyer Lemon, I comfortably fertilize with 1.5 teaspoons per gallon of water, once a week. I wouldn't want to re-pot so soon....and I hate to say it. Perhaps others will comment on the containers. I'm looking at the plants and anticipating more growth this season. There is an interesting debate regarding terracotta. I see that you're located in a zone 6, which means cold Winters. Many folks in the northeast, for example, are finding that black plastic containers help keep the roots warm and the plants more vital during the colder months, including the Spring transition out of doors. I hope some other growers will chime in. As for the Neem treatment....yes, treat all of your Citrus. I like to do lighter Neem treatments, repeated three times, three days apart. That said, the stippling on the leaves could be *old* damage, and there might not be any mites currently. But Neem won't hurt, so you might as well be pro-active. Josh

Use an acid fertilizer as instructed by the package.. look for, use on azaleas, blueberries on the label. Make sure it has micronutrients such as manganese, Zinc, Iron, magnesium, etc. I think the ph should go down. Wait to see what others say as I grow kumquats nagami and meiwa from seed. Their need are a little different from other citrus. You can see the veins and the yellowing leaves on my meiwa kumquat tree. Despite this, the tree has grown very well and seems quit healthy and happy. Click the link below to see Meiwa 's first birthday pictures Here is a link that might be useful: http://s1094.photobucket.com/user/wreristhechimney/slideshow/HAPPY%20BIRTHDAY%20TO%20MEIWA%20ONE%20YEAR%20OLD

The whole plant. The horrible part on the right is a grafted Key Lime. Which is a different problem on it's own. But it's condition might help too. -Lime used to be same size -Full sun in summer -Watered with Miracid 30-10-10, did great -In September Key Lime leaves turning yellow -Lime leaves start dropping -Add more fert -Lime doesn't improve -Lemon leaves begin greening at tips -Move inside due to cold -I think I'm overwatering and overfertilizing (brown tips) SO -re-pot. Sure enough, soil was compacted. I bleached roots to kill possible rot -Used miracle gro citrus/palm/cactus mix in re-pot -moistened soil, didn't give plant attention for a week. Much improvement, new blossoms and leaves sprouting up -watered a tiny bit -still, CERTAIN Lemon leaves continue to yellow -Lime leaves still drop occasionally -Blossoms and new leaves continue to grow (slowly) on both plants Oh, and the key limes leaves do not have the same symptoms at all as the lemon leaves. After cutting limes off (thought they were taking up nutrients), the only fruit are 2 2.5-inch green lemons.

Its definitely not overwatering (i think), im very sensitive to the watering schedule and always allow them to just start to wilt, and i can see the medium turning a dry color at the top. I have a very low nutrient medium that ive custom made from scratch(mostly aeration). its kind of a cross between a 5-1-1 and a basic potting soil. Lotsa perlite, a little dolomitic lime, lots of orchid bark. The problem may be from a specific set of plants I repotted in a frenzy and I basically just used straight potting soil. I also planted some seeds in that particular batch of soil and it completely frapped out, perfect germination but stunted growth from the outset and turned all yellow. I believe it was "greenall" brand potting soil. total crap! I replanted all the seedlings into new MG seed start mix to hopefully salvage a few of them but im not holding my breath. About 20 varietals all barely putting out true leaves after 2 months. well see if those get any better. I have a HUGE amount of leftover GH flora series nutes that I have been using. they have been sitting for a few years. 15 gallons total, 5 gals each nute. Its possible that I overfertilized last week since I have so much its hard to get a "teaspoon" amount out of the 5 gallon containers. but Im pretty sure I got it right. @ottawapepper why do you use your nutes at 1/4 strength? ive read this elsewhere but im unsure why I would go that route if my plants are 2-3 months old? I figured this would require a fairly rapid uptake. Im currently growing around 300 pepper plants and about 40 varieties. all hot and superhots. Im running out of room in my greenhouse, Everyone asks my why I dont grow other plants, all i can say is I really like hot peppers! @habjolokia Hi Mark, thanks for the input. I have some supplemental light (led's that are very weak but designed for plant growth) that are more of an experiment than anything else. that is why some of my plants look purple. its the blue/red LED's. Eventually im planning on adding an array of LEDs to the entire greenhouse and then really trying to push my growing season out. So im curious what type of ferts you use Mark? any name brand? why not use the epsom salts? have you had any bad experiences? Im one of those guys who tends to overdo things so the less is more philosophy is usually very applicable for me.