Phosphorus, KH, Iron and planting substrate question
1. Although Phosphorus is one of the macros for plants, do you still dose it (low dosing) even though it's in fish food, poop etc? Too much causes algae outbreaks right?
2. My tap has 6.4 pH, 0-1 KH. If I want to keep GBRs and cherry shrimp in the not too distant future, I need to get my *pH under 7 and a KH of at least 3* (pH for the Rams, KH for shrimp molting). I've tried crushed coral before but I couldn't control the amount of buffers I put into my tank and my pH always went to 7.6 and screwed everything up. Would seachem's alkaline buffer be better? Would I have to dose it weekly? Any better options?
(Note: I may have confused myself here with the KH. I think plants need a minimum of 3dKH, whereas cherry shrimp need > 3 dGH for molting?)
3. Do I really need Iron ferts, like seachem flourish iron, if I don't grow plants that are red? Iron is found in flourish comprehensive and root tabs too no?
4. I'm planning on getting a better substrate and replacing my old crappy substrate come spring time. I want to know if it's true that eco-complete doesn't have much nutrients but relies on it's CEC index to feed plants? Would you recommend eco-complete? The guy at the store says it lasts 7-10 years.
Last edited by Codzilla; 12-25-2014 at 08:13 AM.
Reason: reason for editing?