So this is my first experience with CO2 and I recently bought some new plants. When I initially placed them in the tank, my baby tears and my other plants (see below) all started to pearl beautifully. Was the first time I have ever seen it and I LOVED it! At this point I was running one bubble every 6 seconds (5 gal).
Well they only did that for ONE day, That was about 2 weeks ago and I have been trying every which way in between since then to get them to pearl. My pH before I add CO2 is about 7.6 (dK = 4, GH ~ 80) and I can pump the CO2 alllll the way to 2 bubs a second and down to almost a 6 pH, with medium to hi light and very little response from any of my plants (S.repens will sometimes make very small bubbles under the leafs).
My baby tears appears to be melting in very few crowded spots, but it isnt dying. My repens is getting brown algae spots on them, but is growing ok. (I rub these off daily) I use the EI dosing index with liq ferts from Nilog, 50% water change weekly. I tried varying the lights schedules (from 7hrs to 10hrs), tried doubling the light they received but still nothing. Turning my CO2 on earlier in the day well (2+hrs) before lights come on. Moving my diffuser and filter return, trying to maximize the time the bubbles stay submerged. Aerating/not aerating (still do it nightly) My R. Ludwiga is coming in nicely (but rarely pearls) and my micro sword has no issues. Is there something im missing here? Any suggestions? Thanks!
FLuval Spec V:
Substrate: Mixed First Layer laterite + Floramax + FLourite sand : 1" sand cap
Fluval 88g CO2 .5 to 6 seconds a bubble
Ferts: EI dosing, Half squirt of Nilog's liquid ferts (Macros M,W,F; Micros T,T,S)
Fugeray Planted + Clip on (10", 5watts)
Plants: S.Repens, R. Ludwiga, Anubas nana, Java moss, Micro Swart, dwarf baby tears,
Fauna: ghost shrimp, 2 bettas.
Current setup (pretty eclectic but just seeing how things come in)