Tank parameters /end cycle/ CUC?
Hello everybody ! So our 120 gallon tank is at the very end of ota cycle. Here are our parameters as of today.
Phosphate:0 ammonia: 0. Nitrite: 0. Nitrate: Between 0 and 5
Ph: (this is after main lights are off and it’s just moonlights) between 7.8 and 8. We have our diatom bloom right now and I know that ph changes after main lighting is off So I have a couple questions. About how much does your ph drop after lights are off? I know it depends on the individual tanks but could u give me a round about in what you have experienced? Also everything is 0 besides nitrates but it has dropped Because it was about 20 a few days ago. Do u think we could go ahead and do a water change and add our CUC? We also have two fish in our 30 gallon. A 3 year old firefish and a lawnmower blenny We have 4 hermit crabs,2 scarlet,one blue and a thin striped hermit. And two turbo snails. After a water change I feel like the nitrates would be at about 0. And everything else seems to be ok. Just want some other opinions. We have a skimmer going ,we have a wavemaker/powerhead going. The sump tank has a filter sock and bio block in it along with the skimmer and return pump going. We have a mix of t5 lights and the kessil ap700 led light on. Led is on first ,then t5 is on about an hour after led comes on. We are leaving the t5 on for about 3-4 hours a day and the led the rest of the time. The tank is 48 x 24 x24 with a canopy. We have around 100 pounds of rock which is a mix of live rock from our 3 year old tank,real reef rock and some dry base rock we bought. The whole tank has been up and cycling for about 2 weeks now. We also have 120 pounds of arag alive reef grade live sand. Any opinions or suggestions are welcome. Thank you