3 harsh and threatening in manner or appearance the fierce faces of the players on the opposing hockey team Synonyms austere, dour, grim, flinty, forbidding, gruff, intimidating, lowering (also louring), rough, rugged, severe, stark, steely, stern, ungentleRelated Words bleak, cold, hostile, inhospitable, inimical, unfriendly, unsympathetic; adamant ...
Puffer fish from all other sources potentially contain deadly toxins and therefore are not considered safe. The liver, gonads (ovaries and testes), intestines, and skin of some puffer fish contain the toxins tetrodotoxin and/or saxitoxin.
Temperature: No special requirements. Normal temperatures for marine fish is between 74 and 79 degrees Fahrenheit. Length/Diameter of fish: Dog-faced Puffer or Black-spotted Puffer adults can grow to 40.0 cm (16 inches). Minimum Tank Length/Size: A minimum 100 gallon aquarium is recommended. Water Movement: Weak, Moderate, Strong No special requirements. Water Region: Top, Middle, Bottom No special requirements.