Green Hygro not doing well

Excel gave the plants the Carbon source they needed, and along with your lighting, they probably ran out of nutrients, hence the problems. Its happens a lot with first time CO2 users, the plants grow so fast until they exhaust their nutrient supply, then have terrible deficiencies and growth.
 
Excel gave the plants the Carbon source they needed, and along with your lighting, they probably ran out of nutrients, hence the problems. Its happens a lot with first time CO2 users, the plants grow so fast until they exhaust their nutrient supply, then have terrible deficiencies and growth.

So what should be done then?
 
but you only need to do this if you have alot of plants right?
If your lighting is at the medium point then you would need co2 and ferts to keep things at balance. But generally at medium light one would want to have a variety of plants instead of one anubia and some moss. Variety/quantity will reduce your chances of getting algae.
 
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