Hi new to saltwater(be gentle)have a 123l fluval flex marine tank using media baskets with biohome marine media..started fishless cycle with dr tims one and only and ammonia been cycling for 4 week now 0 ammonia but nitrites are very high been high for 2 week and got reading for nitrates.photo not to good but a rough idea of what going on using api saltwater test kit but have brought salifert test kits for if and when cycle happens.