Something in my tank is 'off'. Can you help?
I have a 47 gallon tank that has been doing very well for the most part. It's a 'collectoritis' tank, and it's an attempt at keeping a dutch style tank. Anywho. There are just a few things that are a bit off, and I was hoping someone could help me.
First, here are some general details:
Tank is 48x12.5x18.5
Lighting: 2 x 54 watts T5HO
CO2: yes, with hagen mini elite as a diffuser
substrate: sand only
fertilization: EI and root tabs about 5 months ago (time to add new ones?)
algae: I can finally say no!
Things that are going well:
most of my plants; at least 20 different species--common and uncommon
Things that are not going well:
Rotala 'mini butterfly': was doing well for awhile, but then the leaves one day decided to start growing green, very small, and twisted
Rotala araguaia: same thing, but still has some pink color
Staurogyne 'porto velho': same exact symptoms
I know CO2 is the most important thing to get right, and here's where I need help! Last few details--very important:
CO2 turns on at 1:00
Lights on at 1:30
drop checker slowly goes from blue to green throughout the day. blue at 1:00, turquoise at 4:00, green at 5:00, and very light green at 7:00. Why is this happening?
Plants pearl starting around 3:30pm
CO2 off at 7:30
Lights off at 8:00
I've given a lot of details, but that's because I think it's all relevant and related. It strikes me as really strange that the drop checker takes so long to turn green. Can you help me figure out what's not right?
Thanks so much,
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