My plants are still growing and thriving (except for rotala wallichii which
looks sick), and I still have probably 3 types of algae. I have read
numerous articles, and I understand that nutrients (light, co2, ferts) must
be balanced. I seem to get more understanding from reading replies to
questions here.

Tom Barr advised someone to get his CO2 up and stable a few days ago. I
have 2wpg in a 55g heavily planted tank. Using DIY CO2. But my CO2 level
(which I measure shortly after lights on) does vary between 10ppm and 20ppm.
My question here is, are fluctuations in CO2 an algae promoter? I was told
that I didn't have to have CO2 at all unless I wanted a "lush" tank, and I
do want one. Would adding a pinch of sodium bicarbonate to the mix
stabilize the CO2 production?

I'm also considering ordering some true SAE's from aquariumfish.net, which
some people have recommended (Leigh for one, I think). I have read that
SAE's are a must in planted tanks. I want some Amano Shrimp too. I have 8
otocinclus. If I order the SAE's I will probably get an Ancistrus too.

Using TMG, K2SO4, Kent RO Right. Was using some KNO3 but at the moment it
is not being used up. My RO water still has NO3 in it. Tom mentioned I
think it was KH2SO4, is this important, and if so where can I get some?

Any help greatly appreciated!

bob allred