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Hey guys!
I set up a tank at a local school about 1 week ago.
I used eco complete as the substrate and I am using an aqua glo 30 watt, 18000 kelvin bulb.
Over the weekend, some plants uprooted and i noticed the uprooted plants were turning a bit yellow.
This is probably because a deficiency of iron or nitrogen.
So, since I re planted the plants they should have all the iron they need.
If there is a nitrogen deficiency, I am going to add seachem nitrogen.
However, since this is at a school, I can not add the fert for ever.
So, would it be ok if I dosed for about a month or so and stopped?
Thanks!
Btw I have ludwigia, an amazon sword, dwarf sag, and itallian val.
the ludwigia did not uproot but the amazon sword n Italian val did.
 

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Best way to fertilize in this situation is to use tablets.
The teacher or whoever (adult) in charge of the tank can add the tablets every couple of months (whatever the instructions are, or less).
 

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Most likely it's an Iron deficiency, I agree with using root tabs, and replacing the root tabs every couple of months. Plus the 18,000k bulb isn't doing anything for the plants, I recommend that if the tank only has a single bulb going with a 6500k daylight bulb, or a full spectrum bulb at the very least.
 
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