Augus,
orion2001,
LordSul,
Thanks a lot guys.
LordSul,
This tank has a DIY under gravel filter made of 1/2" PVC pipes with holes drilled in a line. Pipes are positioned so that the Holes are facing down the bottom glass. I then attach a small power head on the intake pipe (this is where I dose) which goes up above the substrate.
Kinda like this but on a smaller scale
(picture taken from a fellow hobbyist):
Yes, I think it's under-dosed, albeit barely since it's still in the emersed stage (less dilution).
5th week onwards, I am increasing the dosage to double what I used to.
Yup, if it gets too clumpy, I will trim it down.
HTH