Two fish dead... Discouraged

[Whenwood]

I started my 40g aquarium roughly 3 months ago. The water parameters were great the whole time everything went fairly good. At first I added a clown then a month later a lawnmower blenny. Once I added my light roughly 2 weeks later my tank had a huge bloom in brown algae " the ugly stage". I done my research for a cuc I added 4 nasiras snails, 5 astrea snails, 5 blue legged Hermits and a small yellow watchman goby. The next day I purchased three small frags gsp's,zoas and Red Goniopora. I super glued two frags directly to the rocks in my tank and I glued the goniopora to a tennis ball sized piece of dry rock and placed it in my tank. That was about 36 hours ago. I just got off work and the clown is dead and the lawnmower blenny. I tested the water and everything is very high ammonia nitrate and nitrite. Its very discouraging why did it all spike ? The small piece of rock ? Did I add to much to fast?

Thanks for reading !

 

[jpnegrete14]

My first thought reading this goes to an algae bloom depleting your waters oxygen. But will let others chime in. Sorry for the fish

 

[Super Fly]

sorry to hear about the loss, what filtration system are you using? Lawnmower blenny needs lots of algae to eat or else will starve, i.e. should add to a mature tank. May have added too much too fast with CUC, corals & Goby in short time to a newish tank, was there any die offs of CUC? What has been your tank maintenance/WC routine?

 

[brandon429]

It’s not cycle related/ handy at least for troubleshooting all 3 month tanks have full support ability in place regarding filter bac, a six month reef doesn’t carry more bioload than a three month one etc.

cycled is cycled, for the max bioload a reef can carry relative to its surface area, bac don’t stack up on one another to carry more fish / changing with bioload. Wet rocks carry the relative same numbers of bacteria with or without fish present at all, it’s why coral-only systems can go back and forth between fallow/ loaded with no mini cycles.

the spike came after the dead fish, not before. One fish died due to no disease protocol in place, polluted tank, next dies etc

cuc members are notorious for untimely deaths, something in there died first and next sickest succumbed

 

[brandon429]

Re fallow this tank to reduce future fish issues

 

[vetteguy53081]

I wonder if the glue leached at all? Gel glue is best.
To get a general understanding of what May have happened, I recommend to test:
Salinity
Temperature
Ph
Ammonia
Nitrate

 

[Whenwood]

sorry to hear about the loss, what filtration system are you using? Lawnmower blenny needs lots of algae to eat or else will starve, i.e. should add to a mature tank. May have added too much too fast with CUC, corals & Goby in short time to a newish tank, was there any die offs of CUC? What has been your tank maintenance/WC routine?

I'm using the tidal 110 with some marine pure biofilter media.
The aquarium was going through the first stages of a diatom bloom and I was supplementing with algae wafers.
one snail died but it seams it just fell off the glass and couldn't right itself and yea regular water changes every week or two 15ish liters. things seam to be going good again now but that was frustrating.