Can someone help me pinpoint a nutrient deficiency problem I'm having?
Those are both two different species of swords. I have a root tab next to each, and I dose Flourish once a week, 24 hours after my water change. Lighting is 8 hours.
Nope those are just emersed leaves. They will fell off no matter what. New submerged leaves should grow and been narrower.
If the new leaves have the brown spots on them then it might be a nutreint deficieny but other wise I wouldnt worrry about it.
Oh yeah? On my other swords I got from Petsmart in my 20 gallon always turned yellow at the tips, which spread to the crown slowly.
These ones are doing brown spots and crumpling up.
Well, Echinodorus amazonicus is like that, but the two in question have broader leaves.
The ones pictured are Echinodorus osiris and Echinodorus cordifolius (I think at least ... one might be Echinodorus martii).
Several possibilities here, including those already mentioned. But I am thinking you have soft water if I remember (or am i getting people mixed up)...? You know where this is going then. Insufficient calcium, causing iron deposits (the brown spots). What is the GH?
Yes I'm the guy with soft water. At most 2 dGH out of the tap.
When mixing Equilibrium, what's the best way to get it disolved? I have a 1 gallon water jug I put it in then fill with tank water. There's quite a lot in the bottom of the jug that just won't disolve. I don't really want to put it in the tank as I'm sure the fish will think it's food and try to eat it.
Not sure if that would be bad for them.
I'm fairly certain the soft water is the issue here, there simply is not sufficient calcium, magnesium and potassium in Flourish Comprehensive to make up the shortfall. Flourish is a great supplement, but it assumes one has medium hard or harder water, which of course most areas of NA do. Those of us in the soft areas:-) have to use Equilibrium or similar.
Get the GH up to 5 or 6 dGH, the instructions on the Equilibrium tell you how. Monitor it for one week; I was testing just prior to the weekly water change and am now adding sufficient Equilibrium to maintain a GH of 5 or 6.
As for the undissolved, it looks odd, but it is fine. I put a tablespoon (level, not heaping by the way) of E into a jar (of tap water, but tank water is fine) with a tight fitting lid and shake it to dissolve it. Some bits are always undissolved, but I pour the bottle into the tank, then do the next if more than one tablespoon. The undissolved bits sink to the bottom, and I have noticed that within 3 hours they have dissolved. The fish don't seem to mind them, but this stuff is only mineral anyway, no chemicals, so it shouldn't harm anything. I've been doing this for more than 3 months now. The plants are sure responding, incredible lush green and growing like mad--and no more brown blotches which of course was iron deposits in place of the calcium in the plant cells.
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