reef tank cycling

What are these white stuff in my low flow sump? I’m in the middle of cycling and dosed Dr Tim’s ammonium chloride a few days ago and used Fritz Turbo Start. I did not use any live rock, just Marco rocks and live Fiji pink sand from CaribSea. They’re stationary/do not move.

Hello everyone i recently set up a prostar 90v2 display (63G) sump (15G),I started with a mix of live and dry sand also had my rock scape custom done by chandlerrocks! Started my cycle with 2 clowns a bottle of dr tims and a bottle of microbacter7 i chose to use no lighting during this process...

So I've just got an allpondsoloutions ef1000 external filter 1000 litre(250gal)/hr, the filter seems to be outputting water but the pipe for in flow doesn't look like it has anything in it, I've tried turning off and setting up and priming the filter a few times but nothing seems to help is that...

I set up an Fluval EVO 13.5 with 15 lbs dry rock and 18 lbs CaribSea Arag-Alive Live Aragonite Reef Sand. I'm using Seachem Matrix for Bio Media. I added a full bottle of Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria, dosed with Dr. Tim's Aquatics Ammonium Chloride but the ammonia...

I'm very new to reefing, this is my first ever salt water tank... It has been up and running for around 4 weeks now and has been dosed with microbacter quikcycle and a few doses of microbacter start xlm... My ammonia and nitrite levels have been a bit all over the place but have been holding...

Hello to everyone on here. Firstly, let me introduce myself my name is Minh and I am completely new to the salt water aquarium hobby and I am extremely excited as I am about to embark on this new journey. However I have hit a cross roads and I figured I ask on here for some guidance and wisdom...

Hi my name is Robert. I am from south jersey outside of philadelphia. I am 30 just got back into the hobby this Christmas. Bought my girlfriend a Biocube32 we got the stand from Coralife and the protein skimmer. We are almost 3 week into having it setup. We used caribsea bahamas oolite as...

Hello reef2reef community I recently made my dream transition from fresh to saltwater. My setup is a 14gallon (52L) IM peninsula with dry rock and live sand on day 34. The current equipment on the tank is an ato, biopure gems and recently added my skimmer to begin nutrient export and breaking it...

Hello recently started up a 60G reef tank, it’s going through the brown algae diatom phase. Would it be a good idea to do a water change ? Nitrites are up but ammonia is low about 0ppm I do have live stock in the stock.

Hello all! started up my new tank last month. I had a 90 galon fish/liverock/softy tank about 5 years ago (couldn't take with us). Now we are settled into our new home and jumping back in. Setup: RedSea Reefer 250, dead/dry rock, RedSea 90 LED (x2), IceCap Gyer 3K, (haven't picked skimmer yet)...

Are these diatoms or is this the beginning of algae? Can someone confirm this?