What do you mean by "plenty of light?" What are your lighting specifics? What about fertilization (if any)?
Sorry to sort of ask the same question but we need to know how MUCH of those chemicals you are adding. Also you should dose excel everyday, it is a form of carbon that is used by your plants to help them grow, think of it as an alternative to carbon dioxide. With the flourish I believe it recommends that you dose that at least 3 times a week as well, so you should probably need to increase your dosing of that. You may want to add some iron as well, I believe you can get one from Seachem since I see a theme there with your products. When you say "root tab" is that the brand name of the product you are using? It's hard to judge what nutrients are getting into your fertilizer by just "root tab", different root tablet fertilizers are made up of different things, a lot of people on this forum prefer to use Oscmocote Plus root tabs this is a 15-9-12 fertilizer, they are very affordable and offer great results, you can usually get 100 of them for about $10 USD.Hi Anthony,
Sorry, I thought I made myself clear. Flourish and Excel are applied at each PWC which is made twice a week at 25-gallons. About every six or eight weeks Plant Tabs are added. As for lighting, I am using a Quad T-5 setup, utilizing two 48” tubes at 10 K each and two 48” tubes and 6400k.
bill in pa