This is my second attempt to grow HC on my 25cm Nano cube. It looks like it's failing but would love save it if I could. Hope to get some help here to at least know what I'm doing wrong.
First off here's a picture of the HC I got when I bought them and pictures of the tank.
It looks great and there's nothing more soothing than watching them pearl for the first week or so.
Then somewhere between the end of first week and the now (3 weeks), things started to go sideways:
It's pretty nasty, but I think there are a lot of little leaves still surviving.
Now here's my setup:
CO2 about 1bps
DIY Lights (see pictures below) - light strips of about 2 meters of white light (6500k) and 1 meter of red/blue grow lights.
Small HOB Filter, should be good enough circulation
Did some water test:
GH quite high 9dGH, very likely because of the rock
Temperate 28-31 degrees (too hot maybe?)
I try to do water changes of around half a gallon every 2 days and around 50% weekly
Lights are on for about 6 hours a day
Dose Florish and Potassium/Iron every other day maybe 3-4 drops (1/3 mil)
I'm thinking of giving up HC after this trial but will give it a bit more patience, but I'd like to know what you might suggest to do to first turn things around.
I'm going to try turning lights off for 1-2 days or adjusting lighting to 2-4 hours a day to get rid of the algae.
Also want to put a Siamese flying fox in there to help eat some of it (bad idea? too small a tank?)
Would love some advise. Appreciate any help! Thank you!