if i am dosing dry fertilizers. is there any need or benefit in using root tabs. my substrate is 50% eco-complete and 50% gravel, though i built up one side with all gravel.
Dry fertilizers will fertilize the water column; depending on your substrate (whether it has a high CEC ability or not), will mean whether it absorbs the nutrients or not.
For some heavy root feeders such as Amazon Swords and Cryptocoryne
species, you can use root tabs to further boost the amount of available nutrients to them.