tim
Member
Tds is fairly low so assuming you have softish water, your required ph drop by lights on could be as much as 2 points 7-5, ref lights algae will still utilise the 1hr your using plants need about 5 minimum IMO. Turn co2 on for two hours and then lights on, personally I wouldn't add shrimp until plants are healthy don't be too concerned with algae on glass/ hardscape etc this can be cleaned and syphoned out, small tanks are an almighty pita to balance IMO more frequent waterchanges and cleaning is a must.