Ok to mix Flourish and Flourish Excel in one bottle?
My first post, hi everyone!
Iíve done the calculation to figure out how much of each I need to add to my tank and was planning to add both twice a week on. To simplify the process Iíd like to mix right proportion of each in one bottle and dose from that. Would there be any negative side effects from combining the two into one bottle on the shelf long term, would it cause a breakdown or loss of effectiveness of either fert?
Not that it should matter as my question is specifically about the effects of mixing the two fertilizers but in case anyone is interested, it is for a nine gallon cube (guessing about 8 gallons water Ė assuming you dose on water column size, right?) I was planning to mix Flourish and Excel at 3:4 and dose about 1.5mL of the combo Monday/Thursday and potassium Tuesday/Friday. The tank is in my office so I donít do anything with it on the weekends. It has been doing very well but Iíve seen some holes and browning on different leaves so I started dosing potassium after doing some research. That seems to be working as the new growth is looking good.
Baby Tears (HM I think, middle size)
Some kind of moss, maybe Java?
Ludwigia repens (I think)
Some kind of Vallisneria ( I think, spirally leaves)
And a few other plants Iím not sure on, maybe some type of Anubias and Microsorum
In short, you can mix them with no issue...and in long it actually can be of benfit. Excel acts as an algecide and fungicide, so in a micro mix which is oft to grow fungus when left to sit for too long, a mixture of Flourish and Excel can delay the growth of the fungus.
I just read a similar question on Seachem's forum last night. They do not recommned do ing it, as the Excel will cause precipitation in the Flourish. The support tech was pretty firm about keeping all of their supplements separate until ready for use.
This post is old! But I have the same question.
I am really bad with keeping up with dosing so I hacked a fish feeder to put liquid in it. I would like to use Flourish but I just found 2L of Excel in the house lol. And god knows I can use some Excel in my tank. And I would have to refill the feeder every week.
Has anyone ever tried this with bad outcome?
In general, I wouldn't suggest mixing them for anything longer than short-term storage and expect to get the effects of both. Glut has fairly specific pH requirements to be stable in storage, and even then it does break down over time. I doubt that Flourish has the right pH.
Mixing a small amount of glut into micronutrient mixes to prevent mold growth is fine, it shouldn't harm the micros... However I wouldn't count on this as a mechanism for dosing glut, as the glut will probably degrade faster than normal.
If you really want an authoritative answer, ask Seachem... They are generally pretty good about getting back to you in a few working days.
And here is a bit ambiguous one as it is not clear if it means "dose at the same time" or "mix together then dose" but the answer is you can mix them all together except Phosphorous (though the final clarifying comment is a surprise to me as it says don't dose Phosphorous within 30 minutes of iron):
Bear in mind it is much easier to prove a positive effect (e.g. mix A and B and you die) than a negative one (nothing bad happens). Especially all the combinations. Just from a financial and liability aspect it would surprise me to see Seachem invest in the testing required to safely say "it is safe".