Hi everyone, I've learned a lot already from browsing the forum but the light/plants/ferts/CO2 combos are confusing and thought I'd ask a question.
I have a 20 gal tall freshwater aquarium.
I just upgraded my lights (yesterday) from the standard T8 florescent single-watt bulb to an Aqueon Dual T5 fixture. I'm running two Colormax bulbs (I have light sensitivity and the daylight bulb was a bit too bright for me so I replaced it with another Colormax). Each bulb is 14w. It sits directly on top of the glass top.
Substrate is black sand.
Because of my T8 fixture I started with lowlight plants and also have some others on-order to come this week (full plant list below).
I do not dose anything (ferts, Excel, etc) and I do not have Co2 (would rather avoid CO2 unless it's absolutely necessary). I haven't had my current plants for long, maybe a few weeks so it may be too early to tell how they are doing and as I said I just upgraded my light yesterday.
I do two pwc per week and my nitrates never go over 5 ppm (API kit) between water changes. I do run an air stone.
So my questions are:
1. Do I need to dose anything extra now that I've upgraded my lights? If so, what and how much and how often? Is this safe for fish and snails?
2. Will my "low light" plants be OK with the increased light?
Anubias barteri (have now)
Java Fern (have now)
Windelov Fern (have now)
Riccia on driftwood (have now)
Java moss (have now)
Anubias nana (have now)
Italian vals (coming this week)
Dwarf Lily Red (coming this week)
Anubias Coffeefolia (coming this week)
Crypt Retrospiralis (coming this week)
Crypt Lucens (coming this week)
Christmas Moss (coming this week)
Crypt Wendtii red (coming this week)
Anubias Congensis (coming this week)
Hornwart (coming this week)