Do you vacuum? Do you peat/soil?
I have two basic questions to which I have been unable to find complete
answers in the FAQ or in any of my reference books. I hope you can
answer them for me. I have a 30g long, with just one 20W Lifeguard
Biolume fluorescent bulb. My Java Fern has flourished, and I recently
purchased Java Moss and a beautiful little specimen of a. nana. I only
have a layer of bigger-sized gravel for substrate. I use a Whisper 2
power filter. There are 12 neon tetras, 4 black neon tetras, 2
ottocincluses, 1 angel, 3 albino cats, 9 zebra danios, and 1 fluorescent cat.
My questions are related:
1) Should I vacuum the substrate during my weekly 5g water changes? When
I used to have only the Java Fern (and I had so much that I simply
planted it in the gravel after it overgrew the bogwood) I vacuumed
everywhere but where it was growing. Now that most of the bottom is
covered with plants (2 amazon swords that could look better are also in
there), what do I do? Just let the mulm stay in the bottom?
2) Should I mix into the gravel something else in addition to the
occasional tablet of Tetra Crypta Hydro? If so, do I need to remove all
the water, fish, and plants temporarily? My books say that a. nana likes
a "rich substrate."
Thank you for your advice.